Practice Test


Q1) two kingdom classification was given by Show Answer


Q2) The demerit of two kingdom classification is
Show Answer


Q3) Whittaker could not give place to one of the following in five kingdom classification. Show Answer


Q4) In the five kingdom classification the members in Kingdom Animalia are eukaryotic, heterotrophic and Show Answer


Q5) Out of the following which system shows the phylogenetic relationship between organisms ? Show Answer


Q6) The five kingdom classification is based on Show Answer


Q7) The five kingdom classification was introduced by Show Answer


Q8) Phylogenetic system of classification was first used by Show Answer


Q9) Blue green algae belong to kingdom Show Answer


Q10) Meiosis type of cell division is absent in Kingdom Show Answer


Q11) The filamentous bacteria are Show Answer


Q12) For Baker's yeast, Saccharomyces denotes Show Answer


Q13) Peptidoglycan is a characteristics constituent of cell wall of Show Answer


Q14) Which of the following is not a character of Protista ? Show Answer


Q15) The evoluionary history of a group organisms is called Show Answer


Q16) In Kingdom Protista, the locomotory organs are Show Answer


Q17) Protists obtain their food as Show Answer


Q18) The kingdom which is a link between prokaryotes and multicellular eukaryotes is Show Answer


Q19) Which one of the following has characters of both plants and animals ? Show Answer


Q20) Nutrition in amoeba is Show Answer


Q21) In fungi, the food material is stored in the form of Show Answer


Q22) Some fungi have no cross walls in their hyphae. These hyphae are called Show Answer


Q23) Fungi differ from other kingdoms in being Show Answer


Q24) Main component of cell wall in fungi is Show Answer


Q25) Heterotrophic fungi can live as Show Answer


Q26) Which cell organelle is absent in Kingdom fungi ? Show Answer


Q27) In fungus, the cell wall consists of Show Answer


Q28) The fungi are seprated from Planate on the basis of Show Answer


Q29) Which is not a correct match ? Show Answer


Q30) Extracellular digestion is observed in kingdom Show Answer


Q31) Multicellular eukaryotics decomposers belong to kingdom Show Answer


Q32) The kingdom of true multicellular producers is Show Answer


Q33) All producers are included in kingdom Show Answer


Q34) Vascular tissues are absent in Show Answer


Q35) Whittaker proposed the _______ system of classification. Show Answer


Q36) Plants are Show Answer


Q37) Multicellular life forms are evolved from Show Answer


Q38) Which one of the following is a member of protista ? Show Answer


Q39) In five kingdom classification, Protista comprises of Show Answer


Q40) Classification deals with Show Answer


Q41) The blue green algae are included in the Kingdom Show Answer


Q42) Diatoms are _____ in colour. Show Answer


Q43) In whittaker's classification, the unicellular organism having various cell organelles constitute the Kingdom. Show Answer


Q44) _______ was first to use the word lichen. Show Answer


Q45) The algal component of lichen is known as Show Answer


Q46) _______ belongs to crustose lichen. Show Answer


Q47) __________ belongs to foliose lichen. Show Answer


Q48) Lichens contain a substance ______ which is similar to carbohydrate. Show Answer


Q49) The symbiotic association of fungi and algae is called Show Answer


Q50) Most of the lichens consists of Show Answer


Q51) Which one of the following statement is not true about lichens ? Show Answer


Q52) Orcein is obtained from lichen Show Answer


Q53) Lichens are well known combination of an algae and a fungus where fungus has Show Answer


Q54) Weathering of rocks takes place due to growth of lichen. This process is known as Show Answer


Q55) The lichens which are dorsiventrally flattened, leafy and having rhizines for attachment are called as Show Answer


Q56) Lichen is Show Answer


Q57) Short twisted strands of hyphae which serves as anchors for lichen are Show Answer


Q58) Which of the following take part in the symbiosis in lichens ? Show Answer


Q59) Lichens are described as an indicator of Show Answer


Q60) Foliose is a morphological type of Show Answer


Q61) Lichen and mycorrhiza show Show Answer


Q62) Out of the following which lichens are sterile ? Show Answer


Q63) Which lichens are called leafy lichen ? Show Answer


Q64) Which is not true about habitat of lichens ? Show Answer


Q65) __________ belong to fruticose lichen. Show Answer


Q66) _____ is useful in hydrophobia. Show Answer


Q67) _________ is useful in epilepsy. Show Answer


Q68) _______ is useful in urinary disease. Show Answer


Q69) ______ species is useful in respiratory disease. Show Answer


Q70) Some ________ contain anticarcinogenic property. Show Answer


Q71) _________ acid obtained from the Usnea and Cladonia species is used as an antibiotic against gram positive bacteria. Show Answer


Q72) The lichen/s which is/are used in perfumery is/are Show Answer


Q73) Out of the following which lichens are used in litmus paper preparation ? Show Answer


Q74) Viruses were discovered by Show Answer


Q75) The term virus was first used by Show Answer


Q76) Which one from the following statement is correct about viruses ? Show Answer


Q77) Influenza is caused by Show Answer


Q78) Virus envelope is known as Show Answer


Q79) Tobacco mosaic virus (TMV) is Show Answer


Q80) Viruses are essentially made up of Show Answer


Q81) Which of the following statement indicates that viruses are living ? Show Answer


Q82) An interesting features of virus is that Show Answer


Q83) The group of viruses which attacks bacteria are called Show Answer


Q84) In some viruses, RNA is present instead of DNA indicating that Show Answer


Q85) Plant viruses have Show Answer


Q86) Animal viruses are Show Answer


Q87) Bacterial viruses were discovered by Show Answer


Q88) Out of the following which is not a correct statement with reference to viruses ? Show Answer


Q89) Viruses are Show Answer


Q90) Animal viruses show Show Answer


Q91) AIDS is caused by Show Answer


Q92) Viroid was discovered and named by Show Answer


Q93) Viroids have Show Answer


Q94) Potato spindle tuber disease is caused by Show Answer


Q95) Who obtained the viruses in crystalline form ? Show Answer


Q96) Which of the following statements is NOT TRUE ? Show Answer


Q97) Which feature is CORRECT about common names for organisms ? Show Answer


Q98) Which of the following is a TRUE statement with references to binomial nomenclature ? Show Answer


Q99) Which of the following is a WRONG statement ? Show Answer


Q100) Scientific name of gram plant is arietinum L. Which special feature is indicating by the name ? Show Answer


Q101) Classification reflecting the inter-relationships of organisms is called as Show Answer


Q102) Membrane bound organelles are absent in Show Answer


Q103) Amoeba and paramoecium are included in Kingdom. Show Answer


Q104) Single celled eukaryotes are included in Show Answer


Q105) Primitive nucleus, DNA without histone proteins, absence of membrane bound cell organelles are the characters of Kingdom Show Answer


Q106) Multicellular eukaryotic consumers belong to Kingdom Show Answer


Q107) What of the following statements is NOT TRUE about Euglena ? Show Answer


Q108) Which statement is NOT TRUE about lichens ? Show Answer


Q109) The detailed structure of virus was studied only after the invention of Show Answer


Q110) Which of the following is a plant virus ? Show Answer


Q111) Which of the following is a viral disease ? Show Answer


Q112) Common symptoms due to viral infection include Show Answer


Q113) Which of the following statement is not true about PSTV ? Show Answer


Q114) Fungi can be distinguished from algae because of Show Answer


Q115) Osmoregulation in Paramecium is a function of Show Answer


Q116) Fungi imperfecti includes Show Answer


Q117) Which of the following is a non-hyphal unicellular fungus? Show Answer


Q118) Auxospores and homocysts are formed, respectively by Show Answer


Q119) HIV is classified as a retrovirus because its genetic information is carried in Show Answer


Q120) Consider the following statements
I. Mycelium is branched and septate
II. The asexual spores are generally not formed
III. Vegetative reproduction takes place by framentation
IV. Sex organs are absent but sexual reproduction takes place by somatogamy
V. Karyogamy and meiosis takes place in basidium to form haploid four basidiospores
Vi. Basidia are arranged in fruiting bodies called basidiocarp
The above statements are assigned to Show Answer


Q121) Aristotle classified the plants on the basis of their morphological characters and categorised them into Show Answer


Q122) Citrus canker is a Show Answer


Q123) Which is correct? Show Answer


Q124) African sleeping sickness is caused by Show Answer


Q125) Read the following statement about bacteria and select the correct option Show Answer


Q126) Which of the following is a Gram negative bacterium?
Show Answer


Q127) Virus consists of Show Answer


Q128) Parasitic and saprophytic conditions are more familiar in Show Answer


Q129) Bacteriophage releases lysozyme during Show Answer


Q130) Cladonia rangiferina is a/an Show Answer


Q131) According to five kingdom classification bacteria belong to Show Answer


Q132) Which of the following is a free living nitrogen fixing bacterium present in the soil? Show Answer


Q133) The genetic material of rabies virus is Show Answer


Q134) All of the following fungi belongs to Phycomycetes, except Show Answer


Q135) Which is correct for bacteria? Show Answer


Q136) Consider the following statements
I. In this group, the Plasmodium differentiates and forms fruiting bodies, bearing spores at their tips
II. Spores possess true walls
III. The spores are dispersed by air currents
IV. The spores are extremely resistant and survive for many years even under adverse conditions
The above statements are assigned to Show Answer


Q137) Purified antibiotic penicillin of Penicillium notatum was discovered by Show Answer


Q138) Identify the correct pair of events when temperate phages infect bacteria.
I. No prophages are formed
II. Bacterial cell undergoes many divisions.
III. Bacterial cell undergoes immediate lysis.
IV. Prophages are formed
The correct pair is Show Answer


Q139) Which of the following is an edible fungi?
Show Answer


Q140) Animal cells do not have Show Answer


Q141) State whether the given statements are true or false
I. Five kingdom system of classification did not differentiated between the heterotrophic group, fungi and
the autotrophic green plants, through they showed a characteristic difference in their walls composition.
II. Fungi wall contains chitin, while the green plants has a cellulosic cell wall Show Answer


Q142) Under favourable conditions slime moulds form Show Answer


Q143) Which of the following class of fungi helps in mineral cycling? Show Answer


Q144) Teichoic acid is present in
Show Answer


Q145) Red tide in warms coastal water is caused due to the rapid multiplications of Show Answer


Q146) Which of the following groups are placed under the kingdom-Protista? Show Answer


Q147) Which of the following statements is correct with respect to Colletotrichum falcatum? Show Answer


Q148) Ainsworth put Rhizopus in Show Answer


Q149) The disease caused by virus which is 42 nm in size and contains double stranded DNA is Show Answer


Q150) The disease caused by Trypanosoma is
Show Answer


Q151) In which animal, dimorphic nucleus us found? Show Answer


Q152) Kingdom-Monera consists of Show Answer


Q153) Slimy mass of protoplasm with many nuclei and an Amoeba −like thalloid body is a characteristic feature
of Show Answer


Q154) The bacteria that can reside in extreme salty areas are called as Show Answer


Q155) In which of the following patterns of viral replication, viruses enter a cell, replicate and then cause the cell
to burst, releasing new viruses? Show Answer


Q156) Potato leaf roll or leaf curl of papaya are caused by Show Answer


Q157) The given statements describes a group of organism
I. Instead of a cell wall, they have a protein rich layer called pellicle which makes their body flexible
II. They have two flagella a short and a long one
III. They are photosynthetic in the presence of sunlight, when deprived of sunlight they behave like
heterotrophs by predating on other smaller organism
Which of the following group is referred here?
Show Answer


Q158) In the light of recent classification of living organisms into three domains of life (bacteria, archaea and
eukarya), which one of the following statement is true about archaea? Show Answer


Q159) The sexual stages of pathogens of blast of rice and red rot of sugarcane are named respectively as Show Answer


Q160) Substances secreted by bacteria are Show Answer


Q161) Which of the following statement is correct?
Show Answer


Q162) In five kingdom system of classification of R H Whittaker, how many kingdoms contain eukaryotes? Show Answer


Q163) Contagium vivum fluidum concept of virus was proposed by Show Answer


Q164) Heterothallism was discovered by Show Answer


Q165) A place was rocky and barren but now there is a green forest, the sequence of origin is Show Answer


Q166) The asexual spores formed by Colletotrichum
falcatum, Sphaerotheca
and Rhizopus stolonifer are Show Answer


Q167) Read the following statements regarding archaebacteria and select the correct option
I. Archaebacteria differs from other bacteria in having different cell wall structure
II. Their cell wall is made up of cellulose and contains high amount of unsaturated fatty acid, which is
responsible for their survival in extreme conditions
III. Thermoacidophiles have dual ability to tolerate high temperature as well as high acidity
Show Answer


Q168) In addition to absence of chlorophyll, what is the other difference between fungi and higher plants? Show Answer


Q169) Identify from the following examples, a fungus, which is of medicinal importance Show Answer


Q170) Which one of the following pathogens causes citrus canker disease? Show Answer


Q171) Kingdom-Protista includes Show Answer


Q172) What is common about Trypanosoma, Noctiluca Monocystus and Giardia?
Show Answer


Q173) Analyse the following statements and identify the correct options given below
I. Two kingdom system of classification did not distinguish between the eukaryotes and prokaryotes,
unicellular and multicellular organism and green algae and fungi.
II. The two kingdom classification used for a long time was found inadequate
Show Answer


Q174) Slime moulds in the division-Myxomycota (true slime moulds) have Show Answer


Q175) The protein coat of a virus/is known as Show Answer


Q176) In Amoeba, which controls the cytoplasmic osmality? Show Answer


Q177) The fungus without mycelium is Show Answer


Q178) Which one of the following organisms is scientifically incorrectly named and incorrectly described
Show Answer


Q179) Which one of following has haplontic life cycle? Show Answer


Q180) Analyse the following statements about class-Ascomycetes
I. Mycelium is branched and septate
II. The asexual spores are conidia, produced on the special mycelium called conidiophores
III. Sexual spores are called ascospores which are produced in sac like asci. These asci are arranged in
same types of fruiting bodies called ascocarps
Which of the statements given above are correct Show Answer


Q181) Which of the given statement best describes the gametophytic in the alternation of generation life cycle? Show Answer


Q182) Which of the following does not belong to the kingdom-Protista? Show Answer


Q183) Microphagial nutrition occurs in Show Answer


Q184) Which of the following organisms completely lack cell wall, they are the smallest living cells known and
can survive without oxygen?
Show Answer


Q185) Bacteriophage are Show Answer


Q186) Which one of the following is a matching pair of certain organism (s) and the kind of association?
Show Answer


Q187) The fungal partner in lichen is called mycobiont whereas algal partner is called Show Answer


Q188) In Basidiomycetes, the vegetative reproduction takes place by Show Answer


Q189) Mention the ‘Incubation Period’ of Plasmodium vivax. Show Answer


Q190) The plant cell have an eukaryotic structure with prominent …A… and cell wall is made up of …B…. Identify
the correct options for A and B to complete the given statement Show Answer


Q191) Fungi lack Show Answer


Q192) Which of the following statements are false about viruses?
I. Viruses are facultative parasites
II. Viruses can multiply only when they are inside the living cells
III. Viruses cannot pass bacterial proof filters
IV. Viruses do not contains proteins DNA and RNA Show Answer


Q193) During unfavorable conditions, Amoeba reproduces through Show Answer


Q194) Lomasomes are found in Show Answer


Q195) The genetic material of viruses consists of Show Answer


Q196) Which one of the following is having ssRNA? Show Answer


Q197) F-factor in bacteria is Show Answer


Q198) Viruses have Show Answer


Q199) If sexual reproduction takes place between the filament of Rhizopus of different strains, one with 80
nuclei and another with 24 nuclei, what would be the total number of spores of different strains put
together? Show Answer


Q200) Which of the following kingdoms have no well defined boundaries? Show Answer


Q201) In Deuteromycetes, the mycelium is Show Answer


Q202) Consider the following statements
I. All prokaryotic organism were grouped together under kingdom-Monera
II. The unicellular eukaryotic organism were placed in kingdom-Protista
III. Chlorella and Chlamydomona, both were having cell walls
IV. Paramecium and Amoeba lack cell walls
V. Kingdom-Protista has brought together
Chlamydomona,
Chlorella with Paramecium and Amoeba
Which of the statements give above are correct? Show Answer


Q203) Regarding sexual reproduction in fungi. Which of the following statement is correct? Show Answer


Q204) Which of the following bacteria plays a main role in recycling the nutrients like nitrogen, phosphorus, iron
and sulphur? Show Answer


Q205) Bacteria differ from plants in that they do not have Show Answer


Q206) Among rust, smut and mushroom, all the three Show Answer


Q207) All the given fungi belongs to Deuteromycetes, except Show Answer


Q208) The body of a fungus is made up of a number of elongated, tubutar filaments called
Show Answer


Q209) All monerans Show Answer


Q210) Which of the following is not the locomotory organ of protozoa? Show Answer


Q211) Slime moulds are dependent on Show Answer


Q212) Which of the following is a bacteriophage? Show Answer


Q213) Fungi show sexual reproduction by all of the following processes except
Show Answer


Q214) Black rust of wheat is caused by a species of the genus Show Answer


Q215) Red tides in warm coastal water develops due to the presence of Show Answer


Q216) Black rust of wheat is a fungal disease caused by Show Answer


Q217) Bacterium having flagella with all over body is known as Show Answer


Q218) In some fungi, two haploid cells results in diploid cells. In some cases, dikaryon stage occurs in which two
nuclei are present within a cell. This phase is known as Show Answer


Q219) Reproduction in most of the bacteria is by a process known as Show Answer


Q220) What are episomes?
Show Answer


Q221) Identify the correct pair that shows the double stranded RNA among the following Show Answer


Q222) All of the following statements concerning the actinomycetous filamentous soil bacterium Frankia are
correct, except that Frankia
Show Answer


Q223) Soft-rot disease of sweet potato is caused by Show Answer


Q224) Chromosomes in a bacterial cell can be 1-3 in number and
Show Answer


Q225) The cells of the body of a multicellular fungus are organised into rapidly growing individual filament called Show Answer


Q226) The non-living characteristic of viruses is Show Answer


Q227) Which of the following bacteria are responsible for the production of biogas from the dung of cows and
buffaloes? Show Answer


Q228) In Amoeba, the contractile vacuole is present
Show Answer


Q229) Which of the following environmental conditions are essential for optimum growth of Mucor on a piece of bread?
I. Temperature of about 25°C
II. Temperature of about 5°C
III. Relative humidity of about 5%
IV. Relative humidity of about 95%
V. A shady place
VI. A brightly illuminated place Show Answer


Q230) Which one is the free-living, anaerobic nitrogen-fixer?
Show Answer


Q231) Edible part of mushroom is
Show Answer


Q232) Which of the following is a symbiotic nitrogen fixer? Show Answer


Q233) Viruses contain Show Answer


Q234) In the five kingdom classification, Chlamydomonas and Chlorella are included in Show Answer


Q235) The accumulated food reserve in fungi is Show Answer


Q236) Yeast is not included in protozoans but in fungi because Show Answer


Q237) The genetic material of AIDS virus is Show Answer


Q238) The benefit of algae in lichen is
Show Answer


Q239) Which of the following groups belongs to protozoans? Show Answer


Q240) A virus differs from a bacterium as it contains Show Answer


Q241) Viral genome incorporated into host DNA is called
Show Answer


Q242) Maximum number of antibiotics are obtained from
Show Answer


Q243) Animals reserve food material in the form of Show Answer


Q244) Which of the following protects the bacteria from the enzymes present in the external medium? Show Answer


Q245) Concerning general characteristic of plants, which statement is correct
I. Some of these may be partially heterotrophic as in case of insectivorous plants line Venus fly trap
II. They have distinct nucleus, chloroplast and chitinous cell wall Show Answer


Q246) The smallest free-living organism is Show Answer


Q247) The symbiotic relationship between fungi and algae is called Show Answer


Q248) A term ‘helotism’ is used for the symbiosis of Show Answer


Q249) Chitin is present in the cell wall of Show Answer


Q250) St. Anthony’s fire disease is caused by Show Answer


Q251) In Plasmodium, signet ring stage us formed during Show Answer


Q252) Common cold is a Show Answer


Q253) Viroids were discovered by Show Answer


Q254) Plants provide protection from fungal disease by producing Show Answer


Q255) Who crystallised and isolated viruses for the first time?
Show Answer


Q256) Select incorrect pair. Show Answer


Q257) Who proposed five kingdom classification and named kingdoms as Monera, Protista, Fungi, Plantae and
Animalia? Show Answer


Q258) Analyse the following statements regarding cyanobacteria and identify the correct option given below
I. The cyanobacteria are unicellular, colonial or filamentous, marine or terrestrial algae
II. The colonies of cyanobacteria are generally surrounded by gelatinous sheath Show Answer


Q259) Some bacteria utilises inorganic substances like nitrate, nitrite, ammonia, etc., for the oxidation and
release of energy for ATP production. These are known as Show Answer


Q260) VAM is
Show Answer


Q261) Ascomycetes is commonly known as Show Answer


Q262) Protozoans are Show Answer


Q263) The parthenospores of Rhizopus are Show Answer


Q264) Bacteria do not have Show Answer


Q265) Viruses and viroids are the non-cellular organisms, which are not characterised in the classification of Show Answer


Q266) Which of the following is correct matched? Show Answer


Q267) Which of these best describes the saprophytic generation in plant’s life cycle? Show Answer


Q268) The type of nutrition, where organisms engulf food materials, is? Show Answer


Q269) Fruiting body of Penicillium is
Show Answer


Q270) Which statement is correct for bacterial transduction? Show Answer


Q271) Contractile vacuole is absent in Show Answer


Q272) Mycorrhiza are mutualistic and have symbiotic associations between
Show Answer


Q273) Lichen are mutualistic and have symbiotic associations between Show Answer


Q274) An eukaryote, which causes disease comes under Show Answer


Q275) Curing of tea is brought about by the activity of Show Answer


Q276) The first attempt to classify organisms on scientific basis was done by Show Answer


Q277) Plants have a/an…… in their life cycle Show Answer


Q278) Bacterial flagella is made up of Show Answer


Q279) Consider the following statements and place them into true and false category
I. The fungi constitutes a unique kingdom of heterotrophic organisms
II. The common mushroom and toad stools are fungi
IIII. White spots seen on mustard leaves are due to presence of parasitic fungus
IV. Some unicellular fungi (Ustilago) are used to make bread and beer
V. Puccinia graminis tritici is responsible for yellow rust of wheat
VI. Penicillium yields the antibiotic penicillin Show Answer


Q280) There exists a close association between the alga and the fungus withina lichen. The fungus
Show Answer


Q281) Which is false for nutrition in Amoeba? Show Answer


Q282) Viruses did not find a place in classification since Show Answer


Q283) Certain bacteria living in the soil poor in oxygen, convert nitrates into nitrites and then to free nitrogen
and such bacteria are termed as
Show Answer


Q284) All are the viral diseases except Show Answer


Q285) …… give the name virus, which means venom or poisonous fluid. Fill in the blank Show Answer


Q286) Which is correct? Show Answer


Q287) Which one of the following does not grow in artificial media? Show Answer


Q288) Silica gel is obtained by Show Answer


Q289) Which pair of the following belongs to Basidiomycetes? Show Answer


Q290) In which of the following kingdoms, diatoms are placed? Show Answer


Q291) The wall of bacteria consist of Show Answer


Q292) I. Noctiluca is a colourless dinoflagellates, which is an important constituent of coastal plankton of both
temperate and tropical seas
II. The cellular slime moulds have the characters of both plants and animals
Which of the statements given above is/ are correct? Show Answer


Q293) VAM is useful for Show Answer


Q294) Which of the following group always produce an infectious spore like stage in their life cycle? Show Answer


Q295) Which mushroom contains muscarine?
Show Answer


Q296) Consider the following statements
I. Fruce discovered that the parasite of sleeping sickness is transmitted by tse-tse fly
II. Sleeping sickness of Trypanosoma gambiens is also called Gambian trypanoomiasis, which is found in
western and central parts of Africa
III. Trichomonas vaginalis inhabits vagina of women and causes the disease leucorrhoea
IV. Entamoeba histolytica resides in the upper part of the human large intestine and cause the disease
known as amoebic dysentery
Which of the statements given above are correct? Show Answer


Q297) Protozoans are divided into…… groups. Most suitable word to fill the blank is
Show Answer


Q298) Fungi differs from slime moulds by lacking of Show Answer


Q299) Isogamous means
Show Answer


Q300) Viruses posses Show Answer


Q301) Members of Ascomycetes are Show Answer


Q302) A bacterium is capable of with standing extreme heat, dryness and toxic chemicals. This indicates that it is
probably above to form Show Answer


Q303) Bacterial blight of rice is caused due to Show Answer


Q304) In the following table, identify the correct matching of the crop, its disease and the corresponding
pathogen. Show Answer


Q305) Insectivorous plants are principally
Show Answer


Q306) Bacteria with single flagella at one end is called Show Answer


Q307) Passive food ingestion in Amoeba is known as Show Answer


Q308) Which one of the following combinations of microbes is responsible for the formation and flavor of
yoghurt? Show Answer


Q309) Which of the following is an unicellular sac-fungus? Show Answer


Q310) Find out the correct statement Show Answer


Q311) In which of the following groups, the cell wall has stiff cellulose plate on the outer surface? Show Answer


Q312) Which one of the following are intracellular obligate parasites? Show Answer


Q313) Lichen is the association of Show Answer


Q314) A type of life cycle in which plasmogamy, karyogamy, haplodization takes place but not at specific place in
life cycle of an organism is called as Show Answer


Q315) Which of the following statements about plant is false?
Show Answer


Q316) Consider the following statements
I. Biological classification is the scientific ordering of organisms in a hierarchial series of groups on the
basis of their relationships, i. e., morphological, evolutionary and others
II. Whittaker classified organisms on the basis of autotrophic and heterotrophic mode of nutrition
III. In five kingdom system of classification, living organisms can be divided into prokaryotic and
eukaryotic cells on the basis of cell structure
Which of the statements given above are correct? Show Answer


Q317) ds RNA is found in Show Answer


Q318) Fungi in a forest ecosystem is
Show Answer


Q319) Lysozyme that is present in saliva and tears destroys Show Answer


Q320) Which of the following statement is correct? Show Answer


Q321) Which of the following are the commonly known forms of Basidiomycetes? Show Answer


Q322) Fungus/lichen, which grows on wood is Show Answer


Q323) Which of the following fungus is used extensively in biochemical and genetic work? Show Answer


Q324) Which is the hereditary material in bacteria? Show Answer


Q325) Which statement is incorrect? Show Answer


Q326) Identify the fungus, which produces chlamydospores from dikaryotic mycelium. Show Answer


Q327) Litmus is obtained from Show Answer


Q328) Genophore term was coined by Hans Ris for
Show Answer


Q329) Cell wall of fungi is made up of Show Answer


Q330) The cell wall of bacterium is made up of Show Answer


Q331) Which of the following processes needs bacteriophage? Show Answer


Q332) Bacteria are found in Show Answer


Q333) Eubacteria have rigid cell wall made up of Show Answer


Q334) Cell wall of Gram positive bacteria is made up of Show Answer


Q335) Which of the following are symbiotic bacteria? Show Answer


Q336) Bacterium which reduces nitrates in soil to nitrogen is Show Answer


Q337) Nitrifying bacteria are able to
Show Answer


Q338) Dinoflagellates are mostly ….A… and …B…. Here A and B refers to Show Answer


Q339) Consider the following statements
I. Diatomite is porous and chemically inert. It is therefore, used in filtration of sugar, alcohols, oils, syrups
and antibiotics
II. Diatomite deposits are often accompanied by petroleum fields
III. Desmids are mainly found in dirty water and are, usually indication of polluted water
Which of the statements given above are correct? Show Answer


Q340) The deadliest mushroom is Show Answer


Q341) Arrange the following in correct sequence with reference to sexual reproduction in Rhizopus.
I. Formation of germ tube
II. Formation of zygophores
III. Formation of warty wall layer of zygospore
IV. Secretion of trisporic acid
Show Answer


Q342) The chief advantages of encystment of an Amoeba is Show Answer


Q343) Bacteria are helpful in
Show Answer


Q344) Zygospore is
Show Answer


Q345) Pigment present in cyanobacteria is Show Answer


Q346) The Gram negative bacteria detect and respond to chemicals in their surrounding by Show Answer


Q347) Which of the following combinations of characters is true for slime moulds? Show Answer


Q348) During unfavourable conditions, slime mould forms …A… which are …B… and survive for many years
Identify A and B to complete the given statement Show Answer


Q349) Term ‘virus’ means Show Answer


Q350) Protein coat of a virus enclosing nucleic acid is called Show Answer


Q351) Which of the following is not matched correctly
Show Answer


Q352) Which of the following unicellular organism has a macro-nucleus for trophic function and one or more
micro-nuclei for reproduction? Show Answer


Q353) In Phycomycetes, asexual reproduction takes place by zoospores or by aplanospores. Regarding these
spores, consider the following statements and choose the correct option
I. Zoospores are motile and aplanospores are non-motile in nature
II. These spores are endogenously produced in sporangium
Which of the statements are true and false? Show Answer


Q354) Dikaryophase of fungus occurs in Show Answer


Q355) The infective stage of Entamoeba histolytica, is Show Answer


Q356) Which of the following class consists of coenocytic, multinucleate and aseptate mycelium? Show Answer


Q357) The basic unit of chitin is
Show Answer


Q358) Heterotrophic bacteria are dependent on other organism for Show Answer


Q359) Sexual reproduction is present in all fungi classes, except Show Answer


Q360) Free living, aerobic, non-photosynthetic, nitrogen fixing bacterium is Show Answer


Q361) Kingdom-Animalia includes Show Answer


Q362) Black stem rust of wheat is caused by Show Answer


Q363) Which one is wrong pairing for the disease and its casual organism? Show Answer


Q364) A ‘T-series bacteriophage’ can be recognized by its Show Answer


Q365) Which of the following is a bacterial disease? Show Answer


Q366) Slime moulds are Show Answer


Q367) Mode of feeding in free living protozoan, is
Show Answer


Q368) The protein coat of virus is called capsid, which is made up of small sub-units called …A… which protects
the …B….
Identify A and B and complete the given statement
Show Answer


Q369) In Whittaker’s system of classification prokaryotes are placed in the kingdom Show Answer


Q370) Which of the following animals is having longitudinal binary fission? Show Answer


Q371) Select the incorrect match Show Answer


Q372) Chloromycetin is obtained from Show Answer


Q373) I. Commonly known as sac-fungi
II. Mycelium is branched and septate
III. Conidiophore produces conidia exogenously in chain
IV. The fructifications are edible and considered delicacies
V. Neurospora crassa is often employed in studies conducted in experimental genetics
The above statements are assigned to Show Answer


Q374) Sac fungi includes
Show Answer


Q375) An example for plant growth promoting rhizobacterium, which produces iron chelating substances, is Show Answer


Q376) The protistan cell body contains
I. a well defined nucleus
II. membrane bound cell organelles
III. flagella or cilia
Correct statement among those written above is Show Answer


Q377) Membrane-bound organelles are absent in Show Answer


Q378) Lactic acid formation is a two steps anaerobic process. Both steps are carried at one stage by Show Answer


Q379) In protozoans like Amoeb and Paramecium which of the following organelle is found for
osmoregulation? Show Answer


Q380) Severe Acute Respiratory Syndrome (SARS) Show Answer


Q381) Type of sexual reproduction in protists, bearing diploid chromosome is Show Answer


Q382) Which is responsible for recycling of material? Show Answer


Q383) Which is correct for the structure of cell wall of bacteria and fungi? Show Answer


Q384) Some hyperthermophilic organisms that grow in highly acidic (pH2) habitats belong to the two groups Show Answer


Q385) In plants, mosaic formation, leaf rolling and curling yellowing and vein clearing are the symptoms of Show Answer


Q386) Early leaf spot disease in Arachis hypogea is caused due to infection of Show Answer


Q387) Which of the following are correct to describe viruses?
I. Simple and unicellular organism.
II. Contain DNA or RNA and enclosed by protein coat.
III. Possess own metabolic system and respond to stimuli.
IV. Maintain genetic continuity and undergo mutations.
The correct combination is
Show Answer


Q388) Plasmodium is a Show Answer


Q389) Life cycle of Plasmodium is Show Answer


Q390) Contractile vacuole in protozoan Amoeba is ment for Show Answer


Q391) Some bacteria thrive extreme environment conditions such as absence of oxygen, high salt concentration,
high temperature and acidic pH. Identify the type of bacteria Show Answer


Q392) Trypanosoma causes Show Answer


Q393) Secondary mycelium of mushroom produces umbrella like structure called as Show Answer


Q394) Assign the following substances to the cell wall, flagella, ‘S’ layer and pilli of bacteria in correct sequence.
I. Glycoprotein II. Fimbrilin
III. Teichoic acid IV. Flagellin
The correct sequence is
Show Answer


Q395) Covered smut of barley is caused by Show Answer


Q396) The latest view for the origin of viruses is Show Answer


Q397) Mesosome in a bacterial cell is Show Answer


Q398) Provirus is Show Answer


Q399) Cuscuta is a Show Answer


Q400) Single stranded nucleic acid is found in Show Answer


Q401) In cyanobacteria, which of the following is present? Show Answer


Q402) Which of the following group is considered to be primitive relatives of animals? Show Answer


Q403) Plasmodium Show Answer


Q404) Bakanae disease is caused by Show Answer


Q405) The common nitrogen-fixer in paddy fields is
Show Answer


Q406) Man in the life cycle of Plasmodium, is Show Answer


Q407) Fungi show asexual reproduction by all of the following kinds of spores except Show Answer


Q408) The genome of bacteriophage can be Show Answer


Q409) Mycorrhiza promotes plant growth by
Show Answer


Q410) Ergot of rye is caused by a species of Show Answer


Q411) Flagellate protozoans are Show Answer


Q412) Pasteurization is Show Answer


Q413) A bacterium which is capable of utilizing the most abundantly available gas in the atmosphere for one of
its metabolic pathways, but cannot utilize the second most abundantly available for its another metabolic
pathway is Show Answer


Q414) In fungi, the various types of spores are produced in distinct structures known as Show Answer


Q415) Which one of the following is wrongly matched? Show Answer


Q416) Mosaic disease in tobacco is due to Show Answer


Q417) Mushroom belongs to class Show Answer


Q418) Which of the following pair belongs to the class-Basidiomycetes? Show Answer


Q419) Chief producers in oceans are
Show Answer


Q420) Bacteria are considered plants because they Show Answer


Q421) Red rot of sugarcane is caused by
Show Answer


Q422) In fungi, the network of hyphae is known as Show Answer


Q423) Red rot of sugarcane and white rust of radish are respectively caused by Show Answer


Q424) Identify the diseases that are caused by the organisms of the same sub-division of Eumycota.
I. Citrus canker
II. Red rot of sugarcane
III. Grain smut of sorghum
IV. Black neck of rice Show Answer


Q425) Bacteria which survive in marshy areas and also present in the gut of many ruminant animals like cows
and buffaloes are Show Answer


Q426) In which of the following organisms the cell wall is composed of two thin overlapping shells which fits
together like a soap case
Show Answer


Q427) Which of the following statements about Euglena is true?
Show Answer


Q428) Which one of the following pairs is correctly matched? Show Answer


Q429) Transformation experiment was first performed on which bacteria? Show Answer


Q430) Fungi are classified on the basis of Show Answer


Q431) Deuteromycetes is commonly known as imperfect fungi because Show Answer


Q432) Read the statements given below. Which of these is wrong?
Show Answer


Q433) Leprosy occurs due to Show Answer


Q434) Viruses are non-cellular organisms but replicate themselves once they infect the host cell. To which of the
following kingdom viruses belong to? Show Answer


Q435) Which of the following phenomenon proves that viruses are living?
Show Answer


Q436) I. DJ Ivanowsky (1892) recognised certain microbes as causal organisms of the mosaic disease of tobacco
II. MW Beijerinck (1898) demonstrated that the extract of infected plants of tobacco could cause infection
in healthy plants and called the fluid as Contagium vivum fluidum
III. WM Stanley (1935) showed that these microbes could be crystallised and crystals consist largely of
protein
The above statements are assigned to Show Answer


Q437) Baker’s yeast is Show Answer


Q438) All of the following fungi belongs to Basidiomycetes, except Show Answer


Q439) An example for symbiotic bacteria Show Answer


Q440) Which of the following are the common parasite of class-Basidiomycetes? Show Answer


Q441) In Basidiomycetes, the mycelium is Show Answer


Q442) Virus multiplies in Show Answer


Q443) As a fungus completes its life cycle on two hosts, it is termed as Show Answer


Q444) Helical contractile sheath occurs in
Show Answer


Q445) Which one of the following statements about mycoplasma is wrong? Show Answer


Q446) Plasmid is Show Answer


Q447) Members of Protista are primarily Show Answer


Q448) The RNA like particle, which causes disease is Show Answer


Q449) Protista includes Show Answer


Q450) The infective stage of Plasmodium to man, is Show Answer


Q451) Tobacco mosaic virus is Show Answer


Q452) HIV has a protein coat and genetic material Show Answer


Q453) Which of the following is a nitrogen fixing organism?
Show Answer


Q454) In mushroom, gills are meant for Show Answer


Q455) Which one of the following viruses contains both DNA and RNA?
Show Answer


Q456) State whether the given statements are true or false
I. Bacteria shows both autotrophic and heterotrophic nutrition
II. Some of the bacteria are autotrophic. They may be photosynthetic autotrophic or chemosynthetic
autotrophic
III. Heterotrophic nutrition involves the obtaining of readymade organic nutrients from outside sources
Show Answer


Q457) Mycoplasmas are classified under which of the following kingdoms? Show Answer


Q458) Which of the following is the site f respiration in bacteria? Show Answer


Q459) In which genera, endospores are formed for reproduction? Show Answer


Q460) Nitrates are converted to nitrogen by
Show Answer


Q461) In which kingdom, would you classify the archaea and nitrogen-fixing organisms, if the five kingdom
system of classification is used Show Answer


Q462) Which of the following are the indicators of pollution? Show Answer


Q463) Viruses are also known as Show Answer


Q464) Streptomycin is obtained from Show Answer


Q465) Which of the following is photoautotrophic bacteria?
Show Answer


Q466) Protists are
I. Unicellular and prokaryote
II. Unicellular and eukaryote
III. Multicellular and eukaryote
IV. Autotroph or heterotroph Show Answer


Q467) Tobacco mosaic virus is a tubular filament of size Show Answer


Q468) A teacher was explaining about a constant physical contact involving almost equal physiological
interdependence in two different thalloid forms. He was trying to explain Show Answer


Q469) Which of the following bacteria fixes nitrogen without any plant association? Show Answer


Q470) Crown gall disease in plants is caused by
Show Answer


Q471) Which of the following does not secrete toxins during storage conditions of crop plants?
Show Answer


Q472) Analyse the following statement and identify the correct option given below
I. In diatoms the walls are embedded with silica and thus, the walls are indestructible
II. Diatoms have left behind large amount of cell wall deposits in their habitat, this accumulation over
billions of year is referred to as diatomaceous deposition or diatomaceous earth Show Answer


Q473) In fungi, the fusion of protoplasms between two motile or non-motile gametes is called
Show Answer


Q474) Which one of the following helps in absorption of phosphorus from soil by plants? Show Answer


Q475) Diatomaceous earth is used for all except Show Answer


Q476) Fungal spores produced extremely at the top of hyphae are Show Answer


Q477) Which is a fungal disease? Show Answer


Q478) The free living thalloid body of the slime mould is known a Show Answer


Q479) Which of the following statement is not true for retroviruses? Show Answer


Q480) Chrysophytes are Show Answer


Q481) Among plants ‘pheromones’ are secreted by the cells of the following plants for given function Show Answer


Q482) Amoeba differs form Entamoeba in having Show Answer


Q483) Single-celled eukaryotes are included in Show Answer


Q484) Plasmids are mostly found in Show Answer


Q485) Consider the following statements about sexual reproduction
I. In class-Phycomycetes, sexual reproduction produces a resting diploid spore called zygospore
II. Zygospores are formed by the fusion of two gametes
III. These gametes are similar in morphology or dissimilar
Which of the statements given above are correct? Show Answer


Q486) Fungi that absorbs soluble organic matter from dead substrates are called Show Answer


Q487) Nif genes occur in Show Answer


Q488) A free living nitrogen fixing cyanobacterium which can also form symbiotic association with the water
fernn Azolla is Show Answer


Q489) Consider the following statements about Deuteromycetes
I. Some members are saprophytes or parasites
II. A large number of members are decomposers of litter and help in mineral cycling
III. Alternaria, Colletotrichum, Cercospora and Trichoderma are examples of Deuteromycetes
Which of the above are correct? Show Answer


Q490) Smut and rust belongs to class
Show Answer


Q491) The advantage of fungus in lichen is Show Answer


Q492) Find out the pairs, which are correctly matched?
I. Cyanobacteria –Biopesticides
II. Mycorrhiza – Solubilization of phosphate
III. Bacillus thuringiensis – cry protein
IV. Single cell protein – Rhizobia Show Answer


Q493) Which type of DNA is found in bacteria? Show Answer


Q494) Fungi are divided into four classes on the basis of Show Answer


Q495) Infectious proteins are present in
Show Answer


Q496) In Phycomycetes, asexual repdocution takes place by Show Answer


Q497) Thermococcus, Methanococcus and Methanobac - terium exemplify Show Answer


Q498) Alexander Fleming in 1929 discovered Show Answer


Q499) Transverse binary fission is found in Show Answer


Q500) Virus was discovered by whom? Show Answer


Q501) What are the successive structure formed in course of sexual reproduction of Rhizopus? Show Answer


Q502) Branched, aseptate, coenocytic mycelium present in Show Answer


Q503) The structure in Amoeba functionally similar to human kidney is Show Answer


Q504) Which one is the most abundant microorganism?
Show Answer


Q505) The process which cannot take place in the absence of virus is Show Answer


Q506) Parasexuality was first discovered in Show Answer


Q507) Viroids differ from viruses in having Show Answer


Q508) Consider the following statements about mycoplasma
I. It is pleuomorphic bacteria, which lacks cell wall
II. Mycoplasma is the smallest living organism
III. They can not survive without oxygen
IV. Many mycoplasma are pathogenic in animals and plants
Which of the statements given above are correct? Show Answer


Q509) Which one of the following does not belong to kingdom-Monera? Show Answer


Q510) Which of the following causes disease in human beings? Show Answer


Q511) Pasteurization temperature is Show Answer


Q512) AIDS in human is caused by Show Answer


Q513) Cell wall of all fungi are composed of Show Answer


Q514) Prions are Show Answer


Q515) You might find methanogens Show Answer


Q516) Which of the following group of diseases is caused by viruses? Show Answer


Q517) The cyanobacteria are Show Answer


Q518) Which one of the following is correctly matched? Show Answer


Q519) Which of the following groups of organisms are placed under the group chrysophytes?
Show Answer


Q520) The association mycorrhiza is
Show Answer


Q521) Who proposed two kingdom system of classification and named kingdoms as Plantae and Animalia? Show Answer


Q522) Consider the following statements about slime moulds
I. Plasmodium is found in acellular slime moulds
II. Pseudoplasmodium is found in cellular slime moulds
Which of the statements given above is/are correct? Show Answer


Q523) Which of the following options describes the coenocytic condition in fungus?
Show Answer


Q524) Parasexuality is involved with fusion of
Show Answer


Q525) Consider the following statements about class-Oomycetes?
I. Member may be obligate parasite on plants
II. The mycelium is aseptate and coenocytic
III. Asexual reproduction involves the formation of spore containing sac or sporangia. In aquatic
conditions, the sporangia produces zoospores
Which of the statements given above are correct? Show Answer


Q526) Which one of the following is a characteristics feature of Chrysophytes? Show Answer


Q527) In microbial genetics, which one is referred to as Griffith effect?
Show Answer


Q528) Potato spindle tuber diseases is caused by a Show Answer


Q529) Viruses are no more ‘alive’ than isolated chromosomes because Show Answer


Q530) Fungi causing hair loss are
Show Answer


Q531) The hyphae of Rhizopus are Show Answer


Q532) Deuteromycetes is also known as Show Answer


Q533) Retroviruses have genetic material
Show Answer


Q534) Bacteriophages kill Show Answer


Q535) Asexual reproduction in fungi occurs by
Show Answer


Q536) Lichens show Show Answer


Q537) Ringworm in humans is caused by Show Answer


Q538) Which of the following are the examples of insectivorous plant? Show Answer


Q539) Which of the following characters served as the criteria for five kingdom system of classification as used by Whittaker? Show Answer


Q540) Some of the cyanobacteria blue green algae can fix atmospheric nitrogen in specialised cells called Show Answer


Q541) Eubacteria is also known as Show Answer


Q542) Basidiospores are produced by Show Answer


Q543) Which of the following in the correct sequence of three steps in the sexual cycle of fungi?
Show Answer


Q544) Nostoc and Anabaena belongs to Show Answer


Q545) Cyanobacteria is also known as Show Answer


Q546) Size of TMV is Show Answer


Q547) Specialized cells called heterocysts are present in Show Answer


Q548) Cellulose is the major component of cell wall of Show Answer


Q549) Claviceps is a member of Show Answer


Q550) Mycorrhiza is found in Show Answer


Q551) Which of the following is a flagellated protozoan? Show Answer


Q552) Smallest bacteria is
Show Answer


Q553) Slipper animalcule is
Show Answer


Q554) A female Anopheles mosquito can be recognized by Show Answer


Q555) Highest number of antibiotics are produced by Show Answer


Q556) Which one the following is a red dinoflagellate?
Show Answer


Q557) Phytotoxins are secreted by plants in response to fungal reaction. These compounds are generally Show Answer


Q558) In many bacteria, the cell membrane becomes invaginated and folded to form Show Answer


Q559) Paramecium
I. is a ciliated protozoan
II. has a cavity that opens to the outside the cell surface
III. shows water current maintained by cilia which helps the food to be steared into gullet
Which of the statement given above are correct? Show Answer


Q560) Select the false statement Show Answer


Q561) The respiratory process of yeast is Show Answer


Q562) Viruses that infect bacteria, multiply and cause their lysis are Show Answer


Q563) The fungus used for the commercial production of SCP is Show Answer


Q564) In Vorticella, the total number of micronuclei formed at the end of pre-zygotic nuclear division in female
gamete is
Show Answer


Q565) Consider the following statement about kingdom-Animalia
I. They are heterotrophic, eukaryotic, multicellular organisms
II. Cells do not have cell walls
III. Mode of nutrition is holozoic
Which of the statements given above are correct? Show Answer


Q566) Consider the following statements
I. Kingdom-Protista forms a link between monerans and the other organisms like plants, animal and fungi
II. Protists reproduce asexually and sexually by a process involving cell fusion and zygote formation
III. Being eukaryotes, the protistan cell body contains a well defined nucleus and other membrane-bound
organelles
Which of the statements given above are correct? Show Answer


Q567) Cyanobacteriun is an Show Answer


Q568) Which will you look for the sporozoites of the malarial parasite? Show Answer


Q569) The ‘witches broom’ is caused by a Show Answer


Q570) Deuteromycetes reproduces only by asexual spores known as Show Answer


Q571) Lichens are composite organisms consisting of a fungus and a photosynthetic partner (algae), growing
together in a symbiotic relationship
Consider the following statements about lichens
I. Lichen are very good air pollution indicators
II. Algal partner and fungal partner live mutually
III. Algae prepares food for fungi
IV. Fungi provides shelter and absorbs water and minerals for algal partner
Which of the statements given above are correct? Show Answer


Q572) Mycorrhiza is an example of Show Answer


Q573) Murein is not found in the cell wall of Show Answer


Q574) Which one of the following forms of the bloom is present in polluted water? Show Answer


Q575) Which of the following is a parasitic fungi of mustard? Show Answer


Q576) Which of the following protist release toxins that may even kill fishes and other marine animal? Show Answer


Q577) Triatoma infestans is the intermediate host in the life cycle of Show Answer


Q578) Members of Phycomycetes are found
I. In aquatic habitats
II. on decaying wood
III. in moist and damp places
IV. as obligate parasite on plants
Which of the statements given above are correct? Show Answer


Q579) Outer covering of virus made up of protein is Show Answer


Q580) Plasmodium is an Show Answer


Q581) In which year, Ronald Ross found malaria parasite infection in mosquito? Show Answer


Q582) Mucor and Rhizopus are included in class
Show Answer


Q583) On the basis of their shape, bacteria are grouped under…categories Show Answer


Q584) Plasmogamy is the fusion of Show Answer


Q585) Diatoms and desmids are found in Show Answer


Q586) In Plasmodium, ookinete is formed by Show Answer


Q587) Late blight of potato is caused by
Show Answer


Q588) Paramecium is an aquatic and actively moving organism due to the presence of Show Answer


Q589) Phage genome site on bacterial chromosome resulted in the structure Show Answer


Q590) Enveloped virus enters into host cells by Show Answer


Q591) What is haemozoin? Show Answer


Q592) Euglena is found in Show Answer


Q593) Five kingdom classification was given by Show Answer


Q594) The bacteria Pseudomonas is useful because of its ability to Show Answer


Q595) In fungi, the fusion of two nuclei is called Show Answer


Q596) Euglenoid species that have chlorophyll are Show Answer


Q597) Where the members of Basidiomycetes are grown Show Answer


Q598) Plasmids occur in Show Answer


Q599) The fruiting body formed from a filamentous heterotrophic organism, which is known for its nutritive
value for the humanity, is Show Answer


Q600) Phycomycetes is a class in kingdom Show Answer


Q601) Viral genome, incorporated and integrated with bacterial genome is referred to as Show Answer


Q602) The slime moulds are characterized by the presence of Show Answer


Q603) Spirochaetes is/are Show Answer


Q604) Which one is correctly matched?
Show Answer


Q605) Myxomycetes are Show Answer


Q606) Sol-gel theory, for the first time, was given by Show Answer


Q607) In AIDS, HIV kills Show Answer


Q608) Gene regulation in bacteria is shown by
Show Answer


Q609) Consider the following statements
I. Bacteria reproduce only by binary fission
II. Under unfavourable conditions, bacteria produce several types of spores
III. Bacteria reproduce by a sort of sexual reproduction by adopting a primitive type of RNA transfer from
one bacterium to other
Which of the statements given below are correct?
Show Answer


Q610) Amoeba is a/an Show Answer


Q611) Amoeboid protozoans
I. live in freshwater, sea water or moist soil
II. has pseudopodia for locomotion and capturing prey
III. have silica shells on their surface in marine forms
Which of the statements given above are correct? Show Answer


Q612) Colourless, unicellular, cell wall bound spherical or rod-shaped microorganism and lacking organized
nucleus is called
Show Answer


Q613) Which stain shows Gram negative bacteria during bacterial staining? Show Answer


Q614) Encysted, non-motile and non-feeding infectious stage of Entamoeba histolytica is called Show Answer


Q615) TO Diener (1971) discovered a new infections agent that was smaller than viruses
Consider the following statements about this infectious agent
I. It cause pototo spindle tuber disease
II. These are infectious RNA particles
III. It lacks the protein coat
IV. The molecular wt of its RNA is low
The above statements are assigned to Show Answer


Q616) Consider the following statements about Ascomycetes
I. They are saprophytic, decomposer, coprophilous and parasitic
II. Includes unicellular and multicellular forms
III. Mycelium is coenocytic and aseptate
IV. Asper gillus, Claviceps, Neurospora are important examples of Ascomycetes
Which of the statements given above is/are false? Show Answer


Q617) What happens in anterior part of Amoeba at the time of formation of pseudopodia? Show Answer


Q618) Fungi shows vegetative reproduction by all of the following except Show Answer


Q619) Most abundant bacteria are Show Answer


Q620) The replacement of two kingdom grouping by five kingdom classification was proposed in the year Show Answer


Q621) Which part of an animal virus is not reproduced in multiple copies? Show Answer


Q622) How many young amoebae hatch out from a cyst of E. histolytica? Show Answer


Q623) Difference between virus and viroid is Show Answer


Q624) The thalloid body of a slime mould (Myxomycetes) is known as
Show Answer


Q625) Powdery mildews of crops are caused by
Show Answer


Q626) Galic acid used in making ink is obtained with the help of Show Answer


Q627) Enzymes are absent in Show Answer


Q628) Virion is a
Show Answer


Q629) Halophilic archaebacterium, e.g., Halobacterium salinarum found in great salt lake and dead sea cannot
live in Show Answer


Q630) Cosmid is Show Answer


Q631) Name the fungus that is edible. Show Answer


Q632) T O Diener discovered a Show Answer


Q633) All eubacteria have Show Answer


Q634) Which of the following plant virus has DNA in it? Show Answer


Q635) Regarding plants, choose the correct statement Show Answer


Q636) During conjugation in Paramecium Show Answer


Q637) Identify the edible and delicate Ascomycetes members Show Answer


Q638) Clamp connections are found in Show Answer


Q639) Carries of Entamoeba histolytica are Show Answer


Q640) Nutrition of Entamoeba is Show Answer


Q641) Chlorophyll-a absent, in which of the following photosynthetic organisms? Show Answer


Q642) Name the class of the Mycota which is commonly called ‘fungi imperfecti’? Show Answer


Q643) Yeast and Penicillium are the example of class Show Answer


Q644) A plasmid Show Answer


Q645) ….. include blue-green algae, which have chlorophyll-a similar to green plants. Complete the given sentence with an appropriate option Show Answer


Q646) When a freshwater protozoan, possessing a contractile vacuole, is placed in a glass containing marine
water, the vacuole will? Show Answer


Q647) A kingdom common to unicellular animals and plants is Show Answer


Q648) The given statements describes a group of organisms
I. The pellicle is composed of fibrous elastic protein lipid or carbohydrates and maintains a definite shape
II. They have two flagella, short and a long one. Each flagellum arises from a basal granule
III. They are connecting link between plants and animals
Which of the following group is referred here?
Show Answer


Q649) Plant like nutrition is present in Show Answer


Q650) Which of the following statement is false?
Show Answer


Q651) The main difference between Gram positive and Gram negative bacteria is Show Answer


Q652) Plant virus contains Show Answer


Q653) A new infectious agent that is smaller than virus is Show Answer


Q654) The agents which are known to cause CJD are Show Answer


Q655) Eubacteria includes Show Answer


Q656) Kingdom-Animalia organisms
I. are capable of Iocomotion
II. have specialised sensory and neuromotor system
III. shows sexual mode of reproduction
IV. show the sexual reproduction by copulation of male and female followed by embryological
development
Which of the statements given above are correct Show Answer


Q657) Which of the following is not characteristic of Gram positive bacteria? Show Answer


Q658) Which of the following provided to plant by fungi present in mycorrhiza? Show Answer


Q659) Multinucleated filament of Rhizopus is Show Answer


Q660) Yeast belongs to
Show Answer


Q661) Choose the correct sequence of stages of growth curve for bacteria Show Answer


Q662) Dinoflagellates have Show Answer


Q663) The sub-unit of capsid is called Show Answer


Q664) Which one of the following is not commercially produced by yeast? Show Answer


Q665) Industrial production of ethanol from starch is brought about by certain species of Show Answer


Q666) Which of the following groups of organisms are ecological similar? Show Answer


Q667) The autonomously independent self-replicating extra nuclear DNA imparting certain factors to some
bacterium is called
Show Answer


Q668) The bacterium (Clostridium botulinum) that causes botulism is
Show Answer


Q669) The kingdom of prokaryotes is Show Answer


Q670) Heterocysts present in Nostoc are specialised for Show Answer


Q671) A peculiar odour that prevails in marshy areas and cow-sheds is on account of a gas produced by Show Answer


Q672) ‘Foolish seedling disease’ of rice in Japan was caused by Show Answer


Q673) HIV virus affect …. In AIDS patient. Show Answer


Q674) Which of the following diseases are caused by bacteria?
I. Flu II. Cholera
III. Typhoid IV. Tetanus Show Answer


Q675) Botanical name of species, which causes white rust of crucifers? Show Answer


Q676) Fungi that absorbs nutrients directly from the living host cytoplasm are called Show Answer


Q677) Which of the following is a slime mould? Show Answer


Q678) Analyse the following statements and identify the correct option given below.
I. Viruses that infects plants have single-stranded RNA and viruses that infects animals have either single
or double-stranded RNA or double stranded DNA
II. Bacterial viruses or bacteriophase are usually single-stranded RNA viruses Show Answer


Q679) Lichen is the pioneer vegetation on which succession?
Show Answer


Q680) Which of the following conditions would be favoured by thermoacidophiles? Show Answer


Q681) Statement 1: The fungi are widespread in distribution and they even live on or inside other plants and
animals
Statement 2: Fungi are able to grow anywhere on land, water or on other organisms because they have
a variety of pigments, including chlorophyll, carotenoids fucoxanthin and phycoerythrin.
Show Answer


Q682) Statement 1: Euglena is a plant due to presence of chlorophyll.
Statement 2: Euglena cannot be classified on the basis of two kingdom system. Show Answer


Q683) Statement 1: Gram negative bacteria do not retain the stain when washed with alcohol
Statement 2: The outer face of the outer membrane of Gram negative bacteria contains
lipopolysaccharides, a part of which is integrated into the membrane lipids. Show Answer


Q684) Statement 1: The true nucleus is generally absent in E. coli and other prokaryotes.
Statement 2: An undifferentiated, unorganized fibrillar nucleus without any limiting membrane is
observed in prokaryotic cells. Show Answer


Q685) Statement 1: In fungi, sexual apparatus decreases in complexity from lower to higher forms.
Statement 2: In algae, sexual apparatus increases in complexity from simple to the higher forms. Show Answer


Q686) Statement 1: Viruses cause diseases and replicate when they are in the host
Statement 2: Viruses do not replicate outside the host but they remain alive. Show Answer


Q687) Statement 1: Euglena is a plant due to the presence of chlorophyll
Statement 2: Euglena can not be classified on the basis of two kingdom system Show Answer