Practice Test


1) two kingdom classification was given by


2) The demerit of two kingdom classification is


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


4) In the five kingdom classification the members in Kingdom Animalia are eukaryotic, heterotrophic and


5) Out of the following which system shows the phylogenetic relationship between organisms ?


6) The five kingdom classification is based on


7) The five kingdom classification was introduced by


8) In five kingdom classification, protista comprises of


9) Phylogenetic system of classification was first used by


10) Blue green algae belong to kingdom


11) Meiosis type of cell division is absent in Kingdom


12) The filamentous bacteria are


13) For Baker's yeast, Saccharomyces denotes


14) Peptidoglycan is a characteristics constituent of cell wall of


15) Which of the following is not a character of Protista ?


16) The evoluionary history of a group organisms is called


17) In Kingdom Protista, the locomotory organs are


18) Protists obtain their food as


19) The kingdom which is a link between prokaryotes and multicellular eukaryotes is


20) Which one of the following has characters of both plants and animals ?


21) Nutrition in amoeba is


22) In fungi, the food material is stored in the form of


23) Some fungi have no cross walls in their hyphae. These hyphae are called


24) Fungi differ from other kingdoms in being


25) Main component of cell wall in fungi is


26) Heterotrophic fungi can live as


27) Which cell organelle is absent in Kingdom fungi ?


28) In fungus, the cell wall consists of


29) The fungi are seprated from Planate on the basis of


30) Which is not a correct match ?


31) Extracellular digestion is observed in kingdom


32) Multicellular eukaryotics decomposers belong to kingdom


33) The kingdom of true multicellular producers is


34) All producers are included in kingdom


35) Vascular tissues are absent in


36) Whittaker proposed the _______ system of classification.


37) Plants are


38) Multicellular life forms are evolved from


39) Which one of the following is a member of protista ?


40) In five kingdom classification, Protista comprises of


41) Classification deals with


42) The blue green algae are included in the Kingdom


43) Diatoms are _____ in colour.


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


45) _______ was first to use the word lichen.


46) The algal component of lichen is known as


47) _______ belongs to crustose lichen.


48) __________ belongs to foliose lichen.


49) Lichens contain a substance ______ which is similar to carbohydrate.


50) The symbiotic association of fungi and algae is called


51) Most of the lichens consists of


52) Which one of the following statement is not true about lichens ?


53) Orcein is obtained from lichen


54) Lichens are well known combination of an algae and a fungus where fungus has


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


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


57) Lichen is


58) Short twisted strands of hyphae which serves as anchors for lichen are


59) Which of the following take part in the symbiosis in lichens ?


60) Lichens are described as an indicator of


61) Foliose is a morphological type of


62) Lichen and mycorrhiza show


63) Out of the following which lichens are sterile ?


64) Which lichens are called leafy lichen ?


65) Which is not true about habitat of lichens ?


66) __________ belong to fruticose lichen.


67) _____ is useful in hydrophobia.


68) _________ is useful in epilepsy.


69) _______ is useful in urinary disease.


70) ______ species is useful in respiratory disease.


71) Some ________ contain anticarcinogenic property.


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


73) The lichen/s which is/are used in perfumery is/are


74) Out of the following which lichens are used in litmus paper preparation ?


75) Viruses were discovered by


76) The term virus was first used by


77) Which one from the following statement is correct about viruses ?


78) Influenza is caused by


79) Virus envelope is known as


80) Tobacco mosaic virus (TMV) is


81) Viruses are essentially made up of


82) Which of the following statement indicates that viruses are living ?


83) An interesting features of virus is that


84) The group of viruses which attacks bacteria are called


85) In some viruses, RNA is present instead of DNA indicating that


86) Plant viruses have


87) Animal viruses are


88) Bacterial viruses were discovered by


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


90) Viruses are


91) Animal viruses show


92) AIDS is caused by


93) Viroid was discovered and named by


94) Viroids have


95) Potato spindle tuber disease is caused by


96) Who obtained the viruses in crystalline form ?


97) Which of the following statements is NOT TRUE ?


98) Which feature is CORRECT about common names for organisms ?


99) Which of the following is a TRUE statement with references to binomial nomenclature ?


100) Which of the following is a WRONG statement ?


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


102) Classification reflecting the inter-relationships of organisms is called as


103) Membrane bound organelles are absent in


104) Amoeba and paramoecium are included in Kingdom.


105) Single celled eukaryotes are included in


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


107) Multicellular eukaryotic consumers belong to Kingdom


108) What of the following statements is NOT TRUE about Euglena ?


109) Which statement is NOT TRUE about lichens ?


110) The detailed structure of virus was studied only after the invention of


111) Which of the following is a plant virus ?


112) Which of the following is a viral disease ?


113) Common symptoms due to viral infection include


114) Which of the following statement is not true about PSTV ?


115) Fungi can be distinguished from algae because of


116) Osmoregulation in Paramecium is a function of


117) Fungi imperfecti includes


118) Which of the following is a non-hyphal unicellular fungus?


119) Auxospores and homocysts are formed, respectively by


120) HIV is classified as a retrovirus because its genetic information is carried in


121) 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


122) Aristotle classified the plants on the basis of their morphological characters and categorised them into


123) Citrus canker is a


124) Which is correct?


125) African sleeping sickness is caused by


126) Read the following statement about bacteria and select the correct option


127) Which of the following is a Gram negative bacterium?


128) Virus consists of


129) Parasitic and saprophytic conditions are more familiar in


130) Bacteriophage releases lysozyme during


131) Cladonia rangiferina is a/an


132) According to five kingdom classification bacteria belong to


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


134) The genetic material of rabies virus is


135) All of the following fungi belongs to Phycomycetes, except


136) Which is correct for bacteria?


137) 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


138) Purified antibiotic penicillin of Penicillium notatum was discovered by


139) Thermococcus, Methanococcus and
Methanobacterium are


140) 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


141) Which of the following is an edible fungi?


142) Animal cells do not have


143) 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


144) Under favourable conditions slime moulds form


145) Which of the following class of fungi helps in mineral cycling?


146) Teichoic acid is present in


147) Red tide in warms coastal water is caused due to the rapid multiplications of


148) Which of the following groups are placed under the kingdom-Protista?


149) Which of the following statements is correct with respect to Colletotrichum falcatum?


150) Ainsworth put Rhizopus in


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


152) The disease caused by Trypanosoma is


153) In which animal, dimorphic nucleus us found?


154) Kingdom-Monera consists of


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


156) The bacteria that can reside in extreme salty areas are called as


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


158) Potato leaf roll or leaf curl of papaya are caused by


159) 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?


160) 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?


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


162) Substances secreted by bacteria are


163) Which of the following statement is correct?


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


165) Contagium vivum fluidum concept of virus was proposed by


166) Heterothallism was discovered by


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


168) The asexual spores formed by Colletotrichum
falcatum, Sphaerotheca
and Rhizopus stolonifer are


169) 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


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


171) Identify from the following examples, a fungus, which is of medicinal importance


172) Which one of the following pathogens causes citrus canker disease?


173) Kingdom-Protista includes


174) What is common about Trypanosoma, Noctiluca Monocystus and Giardia?


175) 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


176) Slime moulds in the division-Myxomycota (true slime moulds) have


177) The protein coat of a virus/is known as


178) In Amoeba, which controls the cytoplasmic osmality?


179) The fungus without mycelium is


180) Which one of the following organisms is scientifically incorrectly named and incorrectly described


181) Which one of following has haplontic life cycle?


182) 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


183) Which of the given statement best describes the gametophytic in the alternation of generation life cycle?


184) Which of the following does not belong to the kingdom-Protista?


185) Microphagial nutrition occurs in


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


187) Bacteriophage are


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


189) The fungal partner in lichen is called mycobiont whereas algal partner is called


190) In Basidiomycetes, the vegetative reproduction takes place by


191) Mention the ‘Incubation Period’ of Plasmodium vivax.


192) 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


193) Fungi lack


194) 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


195) During unfavorable conditions, Amoeba reproduces through


196) Lomasomes are found in


197) The genetic material of viruses consists of


198) Which one of the following is having ssRNA?


199) F-factor in bacteria is


200) Viruses have


201) 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?


202) Which of the following kingdoms have no well defined boundaries?


203) In Deuteromycetes, the mycelium is


204) 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?


205) Regarding sexual reproduction in fungi. Which of the following statement is correct?


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


207) Bacteria differ from plants in that they do not have


208) Among rust, smut and mushroom, all the three


209) All the given fungi belongs to Deuteromycetes, except


210) The body of a fungus is made up of a number of elongated, tubutar filaments called


211) All monerans


212) Which of the following is not the locomotory organ of protozoa?


213) Slime moulds are dependent on


214) Which of the following is a bacteriophage?


215) Fungi show sexual reproduction by all of the following processes except


216) Black rust of wheat is caused by a species of the genus


217) Red tides in warm coastal water develops due to the presence of


218) Black rust of wheat is a fungal disease caused by


219) Bacterium having flagella with all over body is known as


220) 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


221) Reproduction in most of the bacteria is by a process known as


222) What are episomes?


223) Identify the correct pair that shows the double stranded RNA among the following


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


225) Soft-rot disease of sweet potato is caused by


226) Chromosomes in a bacterial cell can be 1-3 in number and


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


228) The non-living characteristic of viruses is


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


230) In Amoeba, the contractile vacuole is present


231) 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


232) Which one is the free-living, anaerobic nitrogen-fixer?


233) Edible part of mushroom is


234) Which of the following is a symbiotic nitrogen fixer?


235) Viruses contain


236) In the five kingdom classification, Chlamydomonas and Chlorella are included in


237) The accumulated food reserve in fungi is


238) Yeast is not included in protozoans but in fungi because


239) The genetic material of AIDS virus is


240) The benefit of algae in lichen is


241) Which of the following groups belongs to protozoans?


242) A virus differs from a bacterium as it contains


243) Viral genome incorporated into host DNA is called


244) Maximum number of antibiotics are obtained from


245) Animals reserve food material in the form of


246) Which of the following protects the bacteria from the enzymes present in the external medium?


247) 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


248) The smallest free-living organism is


249) The symbiotic relationship between fungi and algae is called


250) A term ‘helotism’ is used for the symbiosis of


251) Chitin is present in the cell wall of


252) St. Anthony’s fire disease is caused by


253) In Plasmodium, signet ring stage us formed during


254) Common cold is a


255) Viroids were discovered by


256) Plants provide protection from fungal disease by producing


257) Who crystallised and isolated viruses for the first time?


258) Select incorrect pair.


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


260) 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


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


262) VAM is


263) Ascomycetes is commonly known as


264) Protozoans are


265) The parthenospores of Rhizopus are


266) Bacteria do not have


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


268) Which of the following is correct matched?


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


270) The type of nutrition, where organisms engulf food materials, is?


271) Fruiting body of Penicillium is


272) Which statement is correct for bacterial transduction?


273) Contractile vacuole is absent in


274) Mycorrhiza are mutualistic and have symbiotic associations between


275) Lichen are mutualistic and have symbiotic associations between


276) An eukaryote, which causes disease comes under


277) Curing of tea is brought about by the activity of


278) The first attempt to classify organisms on scientific basis was done by


279) Plants have a/an…… in their life cycle


280) Bacterial flagella is made up of


281) 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


282) There exists a close association between the alga and the fungus withina lichen. The fungus


283) Which is false for nutrition in Amoeba?


284) Viruses did not find a place in classification since


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


286) All are the viral diseases except


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


288) Which is correct?


289) Which one of the following does not grow in artificial media?


290) Silica gel is obtained by


291) Which pair of the following belongs to Basidiomycetes?


292) In which of the following kingdoms, diatoms are placed?


293) The wall of bacteria consist of


294) 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?


295) VAM is useful for


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


297) Which mushroom contains muscarine?


298) 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?


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


300) Fungi differs from slime moulds by lacking of


301) Isogamous means


302) Viruses posses


303) Members of Ascomycetes are


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


305) Bacterial blight of rice is caused due to


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


307) Insectivorous plants are principally


308) Bacteria with single flagella at one end is called


309) Passive food ingestion in Amoeba is known as


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


311) Which of the following is an unicellular sac-fungus?


312) Find out the correct statement


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


314) Which one of the following are intracellular obligate parasites?


315) Lichen is the association of


316) 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


317) Which of the following statements about plant is false?


318) 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?


319) ds RNA is found in


320) Fungi in a forest ecosystem is


321) Lysozyme that is present in saliva and tears destroys


322) Which of the following statement is correct?


323) Which of the following are the commonly known forms of Basidiomycetes?


324) Fungus/lichen, which grows on wood is


325) Which of the following fungus is used extensively in biochemical and genetic work?


326) Which is the hereditary material in bacteria?


327) Which statement is incorrect?


328) Identify the fungus, which produces chlamydospores from dikaryotic mycelium.


329) Litmus is obtained from


330) Genophore term was coined by Hans Ris for


331) Cell wall of fungi is made up of


332) The cell wall of bacterium is made up of


333) Which of the following processes needs bacteriophage?


334) Bacteria are found in


335) Eubacteria have rigid cell wall made up of


336) Cell wall of Gram positive bacteria is made up of


337) Which of the following are symbiotic bacteria?


338) Bacterium which reduces nitrates in soil to nitrogen is


339) Nitrifying bacteria are able to


340) Dinoflagellates are mostly ….A… and …B…. Here A and B refers to


341) 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?


342) The deadliest mushroom is


343) 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


344) The chief advantages of encystment of an Amoeba is


345) Bacteria are helpful in


346) Zygospore is


347) Pigment present in cyanobacteria is


348) The Gram negative bacteria detect and respond to chemicals in their surrounding by


349) Which of the following combinations of characters is true for slime moulds?


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


351) Term ‘virus’ means


352) Protein coat of a virus enclosing nucleic acid is called


353) Which of the following is not matched correctly


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


355) 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?


356) Dikaryophase of fungus occurs in


357) The infective stage of Entamoeba histolytica, is


358) Which of the following class consists of coenocytic, multinucleate and aseptate mycelium?


359) The basic unit of chitin is


360) Heterotrophic bacteria are dependent on other organism for


361) Sexual reproduction is present in all fungi classes, except


362) Free living, aerobic, non-photosynthetic, nitrogen fixing bacterium is


363) Kingdom-Animalia includes


364) Black stem rust of wheat is caused by


365) Which one is wrong pairing for the disease and its casual organism?


366) A ‘T-series bacteriophage’ can be recognized by its


367) Which of the following is a bacterial disease?


368) Slime moulds are


369) Mode of feeding in free living protozoan, is


370) 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


371) In Whittaker’s system of classification prokaryotes are placed in the kingdom


372) Which of the following animals is having longitudinal binary fission?


373) Select the incorrect match


374) Chloromycetin is obtained from


375) 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


376) Sac fungi includes


377) An example for plant growth promoting rhizobacterium, which produces iron chelating substances, is


378) 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


379) Membrane-bound organelles are absent in


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


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


382) Severe Acute Respiratory Syndrome (SARS)


383) Type of sexual reproduction in protists, bearing diploid chromosome is


384) Which is responsible for recycling of material?


385) Which is correct for the structure of cell wall of bacteria and fungi?


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


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


388) Early leaf spot disease in Arachis hypogea is caused due to infection of


389) 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


390) Plasmodium is a


391) Life cycle of Plasmodium is


392) Contractile vacuole in protozoan Amoeba is ment for


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


394) Trypanosoma causes


395) Secondary mycelium of mushroom produces umbrella like structure called as


396) 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


397) Covered smut of barley is caused by


398) The latest view for the origin of viruses is


399) Mesosome in a bacterial cell is


400) Provirus is


401) Cuscuta is a


402) Single stranded nucleic acid is found in


403) Mushroom belongs to


404) In cyanobacteria, which of the following is present?


405) Which of the following group is considered to be primitive relatives of animals?


406) Plasmodium


407) Bakanae disease is caused by


408) The common nitrogen-fixer in paddy fields is


409) Man in the life cycle of Plasmodium, is


410) Fungi show asexual reproduction by all of the following kinds of spores except


411) The genome of bacteriophage can be


412) Mycorrhiza promotes plant growth by


413) Ergot of rye is caused by a species of


414) Flagellate protozoans are


415) Pasteurization is


416) 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


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


418) Which one of the following is wrongly matched?


419) Mosaic disease in tobacco is due to


420) Mushroom belongs to class


421) Which of the following pair belongs to the class-Basidiomycetes?


422) Chief producers in oceans are


423) Bacteria are considered plants because they


424) Red rot of sugarcane is caused by


425) In fungi, the network of hyphae is known as


426) Red rot of sugarcane and white rust of radish are respectively caused by


427) 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


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


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


430) Which of the following statements about Euglena is true?


431) Which one of the following pairs is correctly matched?


432) Transformation experiment was first performed on which bacteria?


433) Fungi are classified on the basis of


434) Deuteromycetes is commonly known as imperfect fungi because


435) Read the statements given below. Which of these is wrong?


436) Leprosy occurs due to


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


438) Which of the following phenomenon proves that viruses are living?


439) 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


440) Baker’s yeast is


441) All of the following fungi belongs to Basidiomycetes, except


442) An example for symbiotic bacteria


443) Which of the following are the common parasite of class-Basidiomycetes?


444) In Basidiomycetes, the mycelium is


445) Virus multiplies in


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


447) Helical contractile sheath occurs in


448) Which one of the following statements about mycoplasma is wrong?


449) Plasmid is


450) Members of Protista are primarily


451) The RNA like particle, which causes disease is


452) Protista includes


453) The infective stage of Plasmodium to man, is


454) Tobacco mosaic virus is


455) HIV has a protein coat and genetic material


456) Which of the following is a nitrogen fixing organism?


457) In mushroom, gills are meant for


458) Which one of the following viruses contains both DNA and RNA?


459) 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


460) Mycoplasmas are classified under which of the following kingdoms?


461) Which of the following is the site f respiration in bacteria?


462) In which genera, endospores are formed for reproduction?


463) Nitrates are converted to nitrogen by


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


465) Which of the following are the indicators of pollution?


466) Viruses are also known as


467) Streptomycin is obtained from


468) Which of the following is photoautotrophic bacteria?


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


470) Tobacco mosaic virus is a tubular filament of size


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


472) Which of the following bacteria fixes nitrogen without any plant association?


473) Crown gall disease in plants is caused by


474) Which of the following does not secrete toxins during storage conditions of crop plants?


475) 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


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


477) Which one of the following helps in absorption of phosphorus from soil by plants?


478) Diatomaceous earth is used for all except


479) Fungal spores produced extremely at the top of hyphae are


480) Which is a fungal disease?


481) The free living thalloid body of the slime mould is known a


482) Which of the following statement is not true for retroviruses?


483) Chrysophytes are


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


485) Amoeba differs form Entamoeba in having


486) Single-celled eukaryotes are included in


487) Plasmids are mostly found in


488) 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?


489) Fungi that absorbs soluble organic matter from dead substrates are called


490) Nif genes occur in


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


492) 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?


493) Smut and rust belongs to class


494) The advantage of fungus in lichen is


495) 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


496) Which type of DNA is found in bacteria?


497) Fungi are divided into four classes on the basis of


498) Infectious proteins are present in


499) In Phycomycetes, asexual repdocution takes place by


500) Thermococcus, Methanococcus and Methanobac - terium exemplify


501) Alexander Fleming in 1929 discovered


502) Transverse binary fission is found in


503) Virus was discovered by whom?


504) VAM are


505) What are the successive structure formed in course of sexual reproduction of Rhizopus?


506) Branched, aseptate, coenocytic mycelium present in


507) The structure in Amoeba functionally similar to human kidney is


508) Which one is the most abundant microorganism?


509) The process which cannot take place in the absence of virus is


510) Parasexuality was first discovered in


511) Viroids differ from viruses in having


512) 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?


513) Which one of the following does not belong to kingdom-Monera?


514) Which of the following causes disease in human beings?


515) Pasteurization temperature is


516) AIDS in human is caused by


517) Cell wall of all fungi are composed of


518) Prions are


519) You might find methanogens


520) Which of the following group of diseases is caused by viruses?


521) The cyanobacteria are


522) Which one of the following is correctly matched?


523) Which of the following groups of organisms are placed under the group chrysophytes?


524) The association mycorrhiza is


525) Who proposed two kingdom system of classification and named kingdoms as Plantae and Animalia?


526) 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?


527) Which of the following options describes the coenocytic condition in fungus?


528) Parasexuality is involved with fusion of


529) 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?


530) Which one of the following is a characteristics feature of Chrysophytes?


531) In microbial genetics, which one is referred to as Griffith effect?


532) Potato spindle tuber diseases is caused by a


533) Viruses are no more ‘alive’ than isolated chromosomes because


534) Fungi causing hair loss are


535) The hyphae of Rhizopus are


536) Deuteromycetes is also known as


537) Retroviruses have genetic material


538) Bacteriophages kill


539) Asexual reproduction in fungi occurs by


540) Lichens show


541) Ringworm in humans is caused by


542) Which of the following are the examples of insectivorous plant?


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


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


545) Eubacteria is also known as


546) Basidiospores are produced by


547) Which of the following in the correct sequence of three steps in the sexual cycle of fungi?


548) Nostoc and Anabaena belongs to


549) Cyanobacteria is also known as


550) Size of TMV is


551) Specialized cells called heterocysts are present in


552) Cellulose is the major component of cell wall of


553) Claviceps is a member of


554) Mycorrhiza is found in


555) Which of the following is a flagellated protozoan?


556) Smallest bacteria is


557) Slipper animalcule is


558) A female Anopheles mosquito can be recognized by


559) Highest number of antibiotics are produced by


560) Which one the following is a red dinoflagellate?


561) Phytotoxins are secreted by plants in response to fungal reaction. These compounds are generally


562) In many bacteria, the cell membrane becomes invaginated and folded to form


563) 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?


564) Select the false statement


565) The respiratory process of yeast is


566) Viruses that infect bacteria, multiply and cause their lysis are


567) The fungus used for the commercial production of SCP is


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


569) 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?


570) 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?


571) Cyanobacteriun is an


572) Which will you look for the sporozoites of the malarial parasite?


573) The ‘witches broom’ is caused by a


574) Deuteromycetes reproduces only by asexual spores known as


575) 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?


576) Mycorrhiza is an example of


577) Murein is not found in the cell wall of


578) Which one of the following forms of the bloom is present in polluted water?


579) Which of the following is a parasitic fungi of mustard?


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


581) Triatoma infestans is the intermediate host in the life cycle of


582) 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?


583) Outer covering of virus made up of protein is


584) Plasmodium is an


585) In which year, Ronald Ross found malaria parasite infection in mosquito?


586) Mucor and Rhizopus are included in class


587) On the basis of their shape, bacteria are grouped under…categories


588) Plasmogamy is the fusion of


589) Diatoms and desmids are found in


590) In Plasmodium, ookinete is formed by


591) Late blight of potato is caused by


592) Paramecium is an aquatic and actively moving organism due to the presence of


593) Phage genome site on bacterial chromosome resulted in the structure


594) Enveloped virus enters into host cells by


595) What is haemozoin?


596) Euglena is found in


597) Five kingdom classification was given by


598) The bacteria Pseudomonas is useful because of its ability to


599) In fungi, the fusion of two nuclei is called


600) Euglenoid species that have chlorophyll are


601) Where the members of Basidiomycetes are grown


602) Plasmids occur in


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


604) Phycomycetes is a class in kingdom


605) Viral genome, incorporated and integrated with bacterial genome is referred to as


606) The slime moulds are characterized by the presence of


607) Spirochaetes is/are


608) Which one is correctly matched?


609) Myxomycetes are


610) Sol-gel theory, for the first time, was given by


611) In AIDS, HIV kills


612) Gene regulation in bacteria is shown by


613) 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?


614) Amoeba is a/an


615) 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?


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


617) Which stain shows Gram negative bacteria during bacterial staining?


618) Encysted, non-motile and non-feeding infectious stage of Entamoeba histolytica is called


619) 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


620) 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?


621) What happens in anterior part of Amoeba at the time of formation of pseudopodia?


622) Fungi shows vegetative reproduction by all of the following except


623) Most abundant bacteria are


624) The replacement of two kingdom grouping by five kingdom classification was proposed in the year


625) Which part of an animal virus is not reproduced in multiple copies?


626) How many young amoebae hatch out from a cyst of E. histolytica?


627) Difference between virus and viroid is


628) The thalloid body of a slime mould (Myxomycetes) is known as


629) Powdery mildews of crops are caused by


630) Galic acid used in making ink is obtained with the help of


631) Enzymes are absent in


632) Virion is a


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


634) Cosmid is


635) Name the fungus that is edible.


636) T O Diener discovered a


637) All eubacteria have


638) Which of the following plant virus has DNA in it?


639) Regarding plants, choose the correct statement


640) During conjugation in Paramecium


641) Identify the edible and delicate Ascomycetes members


642) Clamp connections are found in


643) Carries of Entamoeba histolytica are


644) Nutrition of Entamoeba is


645) Chlorophyll-a absent, in which of the following photosynthetic organisms?


646) Name the class of the Mycota which is commonly called ‘fungi imperfecti’?


647) Yeast and Penicillium are the example of class


648) A plasmid


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


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


651) A kingdom common to unicellular animals and plants is


652) 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?


653) Plant like nutrition is present in


654) Which of the following statement is false?


655) The main difference between Gram positive and Gram negative bacteria is


656) Plant virus contains


657) A new infectious agent that is smaller than virus is


658) The agents which are known to cause CJD are


659) Eubacteria includes


660) 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


661) Which of the following is not characteristic of Gram positive bacteria?


662) Which of the following provided to plant by fungi present in mycorrhiza?


663) Multinucleated filament of Rhizopus is


664) Yeast belongs to


665) Choose the correct sequence of stages of growth curve for bacteria


666) Dinoflagellates have


667) The sub-unit of capsid is called


668) Which one of the following is not commercially produced by yeast?


669) Industrial production of ethanol from starch is brought about by certain species of


670) Which of the following groups of organisms are ecological similar?


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


672) The bacterium (Clostridium botulinum) that causes botulism is


673) The kingdom of prokaryotes is


674) Heterocysts present in Nostoc are specialised for


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


676) ‘Foolish seedling disease’ of rice in Japan was caused by


677) HIV virus affect …. In AIDS patient.


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


679) Botanical name of species, which causes white rust of crucifers?


680) Fungi that absorbs nutrients directly from the living host cytoplasm are called


681) Which of the following is a slime mould?


682) 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


683) Lichen is the pioneer vegetation on which succession?


684) Which of the following conditions would be favoured by thermoacidophiles?


685) 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.


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


687) 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.


688) 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.


689) 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.


690) 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.


691) 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