Practice Test


1) Roots that grow from any other part of the plant other than the radicle are called


2) A large globular root that tapers sharply at the lower end is called


3) The roots that swellings at regular intervals are called


4) Massive aerial roots present in a Banyan tree are


5) Plants growing in swamps have roots that grow vertically upwards like conical spikes and have aerating pores. Such roots are called as


6) The roots of the parasitic plant Cuscuta are of following nature


7) A short, vertical underground stem that contains the food reserve is called as


8) Ginger is an example of the following modification


9) A long green stem with long internodes growing horizontly on the soil surface is called as.


10) A short, green, flattened branch resembling a leaf arising from the axil of a reduced scale leaf is called


11) When many equally strong veins like mid rib arise from the petiole towards the margin of the leaf forming a net work, the leaf is said to have following venation


12) In a pitcher plant, the pitchers are modified


13) The sharp spines in cactus are modified


14) The tendrils of the pea plant Pisum are modifications of


15) When the leaflets are joined together at a common point at the petiole, the leaf is said to be


16) Phyllotaxy refers to an arrangement of


17) In a short meristem, protoderm gives rise to


18) In the carnivorous plant Utricularia the bladders are modified form of


19) When phloem is present on both sides of the xylem, the vascular bundle is said to be


20) The intercalary meristem results in


21) Collenchyma differs from sclerenchyma in


22) If parenchyma cells are green in colour, they are known as


23) Cork cells are


24) The living components of xylem are


25) Companion cells are present alongside the


26) The conductive tissue present in gymnosperms consists of


27) The xylem that is formed from procambium and has lignified cell walls is known as


28) The phloem formed from vascular cambium is known as


29) The casparian rings are found in


30) Alburnum is also called as


31) Soft wood is associated with


32) The annual rings are bands of


33) The casparian rings are present in


34) The stele consist of


35) The fascicular cambium is present


36) The vascular bundles of a dicot stem are


37) The function of cork cambium is to produce


38) Pith is small or absent in


39) A dorsiventral leaf is identified by the presence of


40) A dicot root can be identified by


41) Meristematic tissue are


42) In Dicot stem, the xylem is


43) Interxylary as well as intraxylary phloem is present in


44) The sclerenchyma of the hypodermis in the Pinus needle helps in


45) A mature sieve tube differs from a vessel in


46) Velamen tissue is found in


47) G H Shull observed inbreeding depression in a plant. Miller and Letham isolated a hormone from the immature seeds of that plant. Which of the following characters is not associated with the plant?


48) Quiescent centre is found in plants at


49) Complementary cells are associated with


50) At maturity, the sieve plates become impregnated with


51) The tunica-corpus theory was proposed by


52) Which one of the following is well-developed present in hydrophytes?


53) This is a specialised tissue found in the mesophyll of Cycas and Pinus leaves.


54) Simple sieve plate with single perforation is present in


55) From evolutionary point of view, tracheids and sieve cells are more primitive than tracheae and sieve tubes respectively. The angiosperms have


56) Viral infection is usually absent in


57) The cells without nuclei are present in


58) Axillary bud and terminal bud are derived from the activity of


59) Lignification is associated with


60) The roots of angiosperms show exarch xylem and their stems have endarch bundles. These are continuous throughout the change occurs in


61) Which of the following is the region of cell division?


62) A leaf primordium grows into adult leaf lamina


63) Velamen and spongy tissue is found in


64) Which of the following tissues consist of living cells ?


65) Which is true for Meristematic tissue?


66) Periderm is produced from


67) Which combination of tissues acts together to provide the support to the hypocotyl of a seedling


68) In which of the following, root system is poorly developed?


69) Hardness of seed coats is due to the presence of


70) Fusiform initial forms


71) Study the following columns and choose the correct combination.
Tissue Structural Feature function
1.Collen-chyma Cell walls with
high water content Photosy-nthesis in young stems
2.Parenc-hyma Suberised cell walls Storage of food
3.Scleren-chyma Lignified cell walls Mechanical strength
4.Digestive glands Dense cytoplasm Breaking the substrate without water


72) Companion cells in plants are associated with


73) A common structural feature of vessel elements and sieve tube elements is


74) Phloem conducts food by


75) Which of the following cell do not respire?


76) Mark the correct sequence of layers found in root anatomy.


77) Fascicular, interfascicular and extra-stelar cambium together constitutes


78) In the sieve elements, which one of the following is the most likely function of P-proteins?


79) The annular and spirally thickened conducting elements generally develop in the protoxylem when the root or stem is


80) The difference in phloem of gymnosperms and angiosperms is due to


81) Intercalary meristem results in


82) Examples for lateral meristems are


83) The term leptome is used for


84) Largest number of chloroplast is found in


85) Quiescent centre is present in


86) Fibres associated with phloem are………fibres.


87) Velamen is found in


88) The function of a vessel is conduction of


89) Vessels are found in


90) Bamboo and grasses elongate by the activity of


91) Vascular cambium in roots takes its origin from


92) ‘Quiescent centre theory’ was proposed by


93) P-proteins are associated with


94) Aerenchyma is helpful in plants by


95) Compound sieve plates are found in


96) Plant length is increased


97) The tissue which perpetuates itself by active cell division is


98) Cork tissue arises from


99) Periderm includes


100) The meristem, in which the cells divide in several planes is


101) Which of the following statements is true?


102) The chief function of sieve tube element is to


103) Identify from the following, a plant tissue in which lignin does not occur in the cell walls?


104) Collenchyma is


105) Length of petiole increases due to division of


106) Tyloses thickenings are seen in


107) The quiescent centre in root meristem serves as a


108) Vessels are absent in this angiosperm


109) Phytotron is


110) The phloem of angiosperms differs from that of other vascular plants by the presence of


111) Complex tissue includes


112) Meristem consists of


113) Intercalary meristem is a derivative of


114) Quiescent centre is a


115) The length of different internodes in a culm of sugarcane is variable because of


116) The apical meristem of the root is present


117) Which of the following statements are not true?
I.Cork cambium is otherwise called phellogen.
II.Cork is otherwise called phellem.
III.Secondary cortex is otherwise called periderm.
IV. Cork cambium, cork and secondary cortex are collectively called phelloderm


118) Root caps are absent in


119) The histogens are classified on the basis of


120) The jute fibres anatomically are


121) The waxy material deposited in the Casparian strip of the endodermis is


122) Consider the following statements and choose the correct option.
I.The thread like cytoplasmic strands, running from one cell to other is known as plasmodesmata.
II.Xylem and phloem constitute the vascular bundle of the stem.
III.The first formed xylem elements are described as metaxylem.
IV.Radial vascular bundles are mainly found in the leaves


123) Casparian thickenings are found in the cells of


124) Which of the following plants shows multiple epidermis?


125) Which of the following cells is an epidermal cell containing chloroplast?


126) Cuticle is secreted from


127) Damaged sieve tubes are sealed by deposition of


128) Vessels differ from tracheids


129) The chief water conducting elements of xylem in gymnosperms are


130) Meristematic cells have


131) Which of the following is true?


132) Which of the following is not a part of epidermal tissue system?


133) Lamellar collenchyma is seen in the stem of


134) Which of the following would be in significant amount in xylem sap?


135) In which of the following organs, growth is sub-apical?


136) All the following statements regarding sieve tube elements are true except


137) Amphivasal vascular bundle possess


138) Bicollateral conjoint vascular bundles have


139) The vascular bundle, where the phloem is surrounded by xylem is known as


140) Casparian strips are present in the ……… of the root.


141) Which type of vascular bundles are found in monocot stem?


142) Vascular cambium of stem is


143) In a vascular bundle, if xylem vessels develop in a centripetal fashion, the xylem is likely to be


144) Vascular bundles in monocotyledons are considered closed because


145) In the leaf, vascular bundles are found in the


146) Vascular tissue in higher plants develop from which of the following?


147) Vascular tissues in flowering plants develop from


148) The stele is composed of


149) The number of stomata and epidermal cells in 1 mm^2leaf area of lower epidermis of the leaves of X, Y and Z plants are given below. Arrange the plants in decreasing order of their stomatal index.
Plant Number of Stomata Number of Epidermal Cell
X 30 150
Y 60 240
Z 90 400


150) A vascular bundle without pith is


151) A bicollateral vascular bundle has the following arrangement of tissues.


152) The beneficial use of epidermal layer is


153) Bicollateral vascular bundles are found in the members of this family


154) Vascular bundle with cambium is called


155) Vascular bundles, in which xylem and phloem occur as separate bundles are known as


156) Ground tissue includes


157) Vascular bundle, in which two patches of phloem are present on both sides of xylem is


158) Which of the following is not a characteristic feature of bryophytes?


159) Meristematic tissue in vascular bundle is


160) Jute is mainly composed of


161) Casparian strip is found in


162) Stelar regions are formed from


163) Lateral roots develop from primordia originated by the division of


164) Sunken stomata is found in leaves of


165) Maximum number of vascular bundles are present in


166) Vascular bundle having phloem at the centre encircled by xylem is known as


167) Interfascicular cambium is found


168) Non-articulated laticifers are found in


169) Tyloses are balloon-like ingrowths in vessels developing from the adjoining


170) Tyloses an outgrowth from ray or axial parenchyma cell into the lumen of a vessel, which partially or completely blocks the cavity are present in


171) In woody trees, the exchange of gases between the outer atmosphere and the internal tissue of the stem takes place through


172) Old dicot roots differ from dicot stem in


173) Meristematic cells contain more of


174) Which of the following have sunken stomata?


175) Motor cells are found in


176) Desert grasses often roll their leaves due to presence of


177) Conjoint collateral closed vascular bundle is found in


178) The large empty and colourless cells present at intervals on the upper surface of grass leaf are called


179) Palisade parenchyma is absent in leaves of


180) Bulliform cells found in


181) The position of protoxylem in leaf is


182) Root cap is not used in water absorption due to


183) Two cross-sections of stem and root appear simple, when viewed by naked eye. But under microscope, they can be differentiated by


184) The internal structure of a plant stem is observed. There is a discontinuous ring of angular collenchyma below the epidermis. Type of vascular bundles are of the same type as in the stems of solanaceous plants. Sieve tube elements possess simple sieve plates, identify the plant


185) Mesophyll is well differentiated into palisade and spongy tissue in


186) Identify the plant parts whose transverse section shows a clear and prominent pith.


187) In a woody dicotyledonous tree, which of the following parts will mainly consist of primary tissues
?


188) Exarch and polyarch xylem strands are found in


189) The inner, darker and harder portion of secondary xylem that cannot conduct water, in an older dicot stem, is called


190) In dicot stem, vascular bundles are


191) Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous stem by


192) The lacunae in vascular bundle of monocot stem is


193) In grasses, certain adaxial epidermal cells along the veins modify themselves into large empty, colourless cells called


194) In monocot roots, which type of vascular bundles are found?


195) Arrange the following plants in ascending order based on the number of xylem strands in their roots.
I.TrapaII. Pisum III.Castanea IV. Nicotiana


196) The stele found in monocot is


197) The cork cambium, cork and secondary cortex are collectively called


198) Old stem on Combretum has


199) Which is a characteristic of dicots?


200) Sequence of cellular layers from the periphery towards the cortex in an old dicot stem is


201) Arrange the following in the order of their location from periphery to centre in the entire dicotyledonous plant body.
I. Fusiform cells II. Trichoblasts III. Collocytes IV.Tyloses


202) What differentiates leaf of dicots from monocots?


203) In monocot stem, which of the following is absent?


204) In a dicotyledonous stem, the sequence of tissues from the outside to the inside is


205) In dicotyledonous roots, the initiation of lateral roots takes place in


206) In rhizome of Pteridium, stele, which is composed of two or more than two concentric rings of vascular bundles is called


207) Cork cambium of dicot originates from


208) The layer of cells outside the phloem meant for giving rise to the root branches is called


209) The vascular cambial ring of dicot stem is


210) In barley stem, vascular bundles are


211) Cambium activity is highest in


212) Secondary phloem remains functional generally


213) Dendrochronology is


214) In dicot stem, secondary growth is due to the activity of


215) Diffused porous woods are characteristic of plants growing in


216) Growth rings are absent or not sharply demarcated in the trees of


217) Science, which deals with the study of ageing is known as


218) In the following, how the sapwood is converted into heartwood?


219) For a critical study of secondary growth in plants, which one of the following pairs is suitable?


220) The secondary meristem initiates


221) Identify the correct order of the components with reference to their arrangement from outer side to inner side in a woody dicot stem.
I.Secondary cortex
II.Autumn wood
III.Secondary phloem
IV.Phellem


222) Alburnum is otherwise known as


223) Interfascicular cambium is a


224) A monocot stem with secondary growth is


225) In an annual ring, the light coloured part is known as


226) A tree grows at the rate of 0.5 m per year. What will be the height of the board fixed at 1.5 m above the base five years ago?


227) As secondary growth proceeds in a dicot stem, the thickness of


228) A nail is driven into the trunk of a 30 years old tree at a point 1 m above the soil level. The tree grows in height at the rate of 0.5m a years. After three years, nail will be


229) Which tissue gives rise to secondary growth?


230) Heartwood differs from sapwood in


231) Which one of the following is the correct sequence of tissues present in dicot stem during secondary growth?


232) Which is not a characteristic of plant cell walls?


233) Duramen is present in


234) Wood is


235) The meristem responsible for extra stelar secondary growth in dicot stem is


236) What is/are true about heartwood?
I.It does not help in water conduction.
II.It is also called alburnum.
III.It is dark in colour but very soft.
IV.It has tracheary elements, which are filled with tannin, resin, etc.


237) Removal of ringwood of tissue outside the vascular cambium from the tree trunk kills it because


238) Cork cambium gives rise to


239) Tracheids


240) The age of tree by counting annual rings is called


241) Growth rings are formed due to activity of


242) In which of the following, there is no differentiation of bark, sapwood and heartwood?


243) Cambium activity is


244) Cambium is a type of


245) Pith is a central part of the ground tissues generally made up of


246) I. The 1° and 2° phloem get gradually crushed due to the continued formation and accumulation of 2°
xylem
II. 1° xylem remains more or less intact in or near the centre
III. Secondary growth results in an increase in the length of the axis
Select the correct statements


247) Cork is used as the stopper for bottles, for shock absorption and insulation because of


248) Medullary rays are formed by the


249) The merismatic tissue responsible for the cutting of vascular tissue (xylem and phloem) is called


250) Secondary phloem of a dicot root is made up of
I. sieve tube
II. companion cell
III. phloem parenchyma
Select the correct option for given statement


251) The innermost layer of cortex is called


252) Amphistomatic leaf is


253) The ring arrangement of vascular bundle is the characteristic feature of


254) Primary meristem is


255) I. These tissue are found as layers or patches
II. It consists of cells which are thickened at the corners
III. It often contains chloroplast
IV. Intercellular spaces are absent
V. They provide mechanical support to growing parts of plants
The above characters are attributed to


256) Medullary or pith ray is the


257) Which of the function in the given options does not belongs to the monocot root?


258) Conjoint vascular bundles are common in


259) In stem, the xylem is


260) Root apical meristem is derived from the


261) The growth of root and stem in length with the help of apical meristem is called …A…. Apart from primary
growth most dicotyledonous plant exhibit an increase in girth called …B…
Choose the correct combination of A, B and C in respect to the above paragraph


262) Which of the following statement is correct?


263) In monocotyledonous stem, the vascular bundles are


264) Select the wrong statements
I. Primary and secondary phloem gets crushed during secondary growth
II. During secondary growth, primary xylem remains more or less intact


265) I. Fat
II. Protein
III. Sugar
IV. Salt
Which of the above is/are present in higher concentration with the meristematic cells?


266) The cells arranged in multiple layers between the epidermis and pericycle is called


267) Epidermis is derived from


268) The activity of cambium in plants is under the control of


269) Bark includes
I. phellogen
II. phellem
III. secondary phloem
IV. secondary xylem
Select the correct combination


270) Initiation of lateral roots and vascular cambium during secondary growth organs occurs due to activity of


271) I. Sunflower seed
II. A wheat leaf
III. Pea plant
IV. Leaf blade of grass
Bulliform cells are present in which of the above plants?


272) I. Vessel, II. Tracheids, III. Companion cells
Which of the following is/are living cells?


273) In old trees, the greater part of secondary xylem is dark brown due to the


274) Conjuctive tissue is made up of


275) I. Peripheral vascular bundles are smaller than the centrally located vascular bundles
II. Phloem parenchyma is absent
III. Water parenchyma cavities are present within the vascular bundles
Which of the above characters belong to the monocotyledonous stem?


276) Early wood is formed in dicot plant during


277) The meristem which is particularly present in the mature regions of roots and shoots and produce woody
axis and appear later than the primary meristem is called


278) Vessels are absent in this angiosperm.


279) Roots apical meristem occupies the …A… of roots, while shoot apical meristem occupies the distant most
region of the …B… axis
Complete the above sentence with the correct combination of A and B


280) Vascular bundle in the laves of dicots are surrounded by


281) Exchange of gases between the outer atmosphere and internal tissue of the stem takes place by (in dicot
stem)


282) Intrafascicular cambium is present in between the


283) Cambium is present in between


284) 'Exarch’ is the condition of vascular bundles in which


285) Select the correct statements
I. Epidermal call have small amount of cytoplasm and a large vacuole
II. Waxy layer cuticle is absent in roots
III. Root hairs are unicellular, while stem hairs/trichomes are multicellular
IV. Trichomes are branched/unbranched, soft/stiff and secretory or transpiration preventive
V. Guard cells are dum-bell-shaped in dicots and bean-shaped in monocots (e.g., grass)


286) In dicot root, the vascular cambium are


287) I. Annual rigs are formed as a result of seasonal environmental conditions
II. Tracheids/vessels elements are larger during periods when water is abundant
III. Tracheids/vessels elements have thicker wall during periods of water deprivation
IV. Wood formed in the previous years is darker than newer wood
Select the combination of correct statements from the options given below


288) Select the incorrect statements
I. Excessive loss of water is prevented by epidermis
II. Stomata develop from epidermal tissue
III. Photosynthesis is one of the primary function of leaf ground tissue


289) Which element of xylem is the characteristic feature of angiosperms?


290) As compared to the dicot root, monocotyledon root have


291) In roots the


292) Epidermis is often covered with a waxy thick layer called


293) I. Protection of internal tissue
II. Prevention of entry of any harmful organism
III. Minimising surface transpiration
IV. Protection against excessive heating up
These are the functions of which of the following?


294) In a woody dicotyledonous tree, which of the following parts will mainly consist of primary tissues?


295) Atactostele type of stele is found in


296) I. Sieve tube conduct organic food longitudinally
II. Xylem parenchyma cells stores food and help in lateral conduction of sap
Select the correct option


297) Water impermeable, waxy material secreted by endodermal cells is called


298) Select the correct statement from the following


299) Tissues involved in secondary growth is/are
I. intercalary stem
II. vascular cambium
III. cork cambium
Select the correct options from below


300) Mesophylls of monocotyledon leaf are not differentiated into


301) In dicot, leaves, protoxylem elements


302) The wood with lower density is …A… and that of higher density is …B…
Choose the correct combination of options for A and B


303) The protoxylem and metaxylem in the stem lies towards


304) Central part of root occupied by parenchymatous (thin or thick walled) cells is called


305) Generally the silica is deposited on the free sides of


306) Monocot root differ from dicot root because of


307) Stomatal apparatus consists of


308) Among the following attributes of xylem, which are mainly mechanical in function?


309) On the basis of their structure and location, tissue system is of …… in plants


310) Grass elongates after cutting (moving) due to


311) Xylem fibres are made up of


312) Prickles
I. don’t have vascular supply
II. are epidermal in origin
III. help in climbing
Select the right combination of statements from the given options


313) Which one of the following is well-developed present in hydrophytes?


314) Trichomes are epidermal hairs of


315) I. Protection of internal tissues
II. Protection leaves from microbes
III. Gaseous exchange
IV. Reduction in the rate of transpiration through epidermal cells due to trichomes
Which of the function of epidermis is/are relevant from the above given statements?


316) In flowering plants, the main water transporting elements are


317) The vertical section of a dorsoventral leaf through the lamina shows three main parts namely, epidermis,
…A… and vascular system. The epidermis, which covers the upper surface is …B… and lower surface is
covered by …C… of the leaf.
Choose the correct combination of A, B and C


318) I. Epidermis
II. Mesophyll
III. Vascular system
Which of the above component is made up of parenchyma and have chlorphyll?


319) Conducting tissue for the transport of water and minerals from the roots to the stems and leaves is called


320) Abaxial surface of the leaf generally bears


321) Open vascular bundles


322) Which one of the following is not a lateral meristem?


323) Which of the following statements are true?
I.Uneven thickening of cell well is characteristic of sclerenchyma.
II.Periblem forms the cortex of the stem and the root.
III.Tracheids are the chief water transporting elements in gymnosperms.
IV.Companion cell is devoid of nucleus at maturity.
V.The commercial cork is obtained from Quercus suber


324) Which of the above following are simple tissues?
I. Parenchyma
II. Collenchyma
III. Sclerenchyma


325) I. Epidermal cells
II. Stomata
III. Trichomes
IV. Root hairs
These are the attributes of


326) The functions of sieve tubes are controlled by


327) During the formation of primary plant body specific regions of apical meristem produces


328) I. Phloem transports the food materials usually from the leaves to other parts of the plant
II. Phloem in the angiosperm is composed of sieve tube elements, companion cells, phloem parenchyma
and phloem fibres
Identify which of the following statement is correct and select the correct option


329) The outermost layer of dicotyledonous root is called


330) Choose the wrong statement from the following


331) I. It is resistant to microorganisms
II. It comprises dead elements
III. It comprises highly lignified cell wall
IV. It is the peripheral part
V. It is dark and tough
Which of the above property doesn’t belongs to heart wood?


332) Tracheids


333) I. Usually cortex of stem is formed the during secondary growth of the stem
II. It is a couple of layer thick
III. It is made up of thin walled rectangular cells
Select the incorrect statements


334) Which of the following cells are studied during translocation of solutes?


335) Which cells possess chloroplast and regulate the opening and closing of stomata?


336) Cells of collenchyma have thickened corners due to the deposition of


337) Complex tissues are


338) All the tissues on the innerside of the endodermis constitutes together to form


339) The cork is impervious to water due to


340) I. Vascular tissue
II. Cork cambium
III. Xylem and phloem elements
IV. Parenchyma and sclerenchyma
Choose the correct combination for heterogenous tissue


341) In dicotyledonous root, the cortex consists of


342) Permanent or mature cells are formed by


343) Consider the following statements and choose the correct option.
I.The thread like cytoplasmic strands, running from one cell to other is known as plasmodesmata.
II.Xylem and phloem constitute the vascular bundle of the stem.
III.The first formed xylem elements are described as metaxylem.
IV.Radial vascular bundles are mainly found in the leaves.


344) Parenchymatous cells are usually present in the
I. pericycle
II. pith
III. medullary rays
IV. primary root
V. secondary root
VI. primary stem
VII. secondary stem
Select the correct combinations from the given options


345) In dicotyledonous root


346) Simple tissues which occurs in layers below the epidermis in dicotyledonous plants are


347) Intercalary meristem is found between the


348) In dicot root, the cork cambium is formed with the help of


349) In monocot stem, the hypodermis is


350) Bulliform cells are the modification of


351) In dicot stem, secondary xylem lie towards the …A… and secondary phloem lie towards the …B… .
Choose the correct combination of options for A and B


352) Which meristem is responsible for the production of secondary tissues?


353) Wood is


354) Sclerenchyma mainly provides


355) I. Made up of sclerenchymatous cells
II. Generally absent in primary phloem
III. Much elongated and pointed
Given above characters belongs to which of the following?


356) I. It is made up of elongated, compactly arranged cells
II. It is usually single layered
III. It is parenchymatous
IV. Large vacuole is present
Which of the above characters belong to the epidermis?


357) I. They may be branched or unbranched and soft or stiff
II. They may be secretory and help in preventing water loss due to transpiration
Which of the above characteristics belongs to trichomes


358) In young stem, the vascular cambium is


359) New protective layers formed after the crushing or breaking of cortical and epidermal layers due to
increase in the girth of stem by vascular cambium. These new layers collectively called as


360) Which of the following tissues consist of living cells?


361) I. Pith is large and well-developed in monocots
II. Monocot root don’t undergo any secondary growth
In accordance to the above statements, identify the correct one


362) Cells having no power of cell division are formed by


363) I. Youngest secondary phloem is just outside the cambium, while youngest secondary xylem is present
inside the cambium
II. Oldest secondary phloem is just inside the primary phloem, while oldest secondary xylem is just above
pith
III. Secondary medullary ray passes through both secondary xylem and secondary phloem
Select the incorrect statement from above


364) Vascular cambium of dicot root originates from the tissue located just below…A… bundles, a portion of
pericycle tissue above the …B… forming a complete continues wavy ring, which later becomes …C…
Choose the correct combination of options for A-C


365) Plant length is increased by


366) In dicotyledonous stem, the sequence of tissue from outside to inside is


367) In grasses, the guard cells are


368) Heart wood and sapwood of dicot plants are respectively, called as


369) Simple permanent living tissues which are made up of thin-walled similar isodiametric cells are called


370) Polyarch condition is found in which of the following?


371) Apical meristems are present at the


372) Plant cells that are photosynthetically active are found in the …A… layer of leaves and are …B… .
Choose the correct combination of A and B from the below given options


373) Which of the following statement is correct?
I. Many organs of aquatic plants floats in water
II. Large air gaps are present in the collenchyma tissue of lotus leaf


374) I. Tracheids
II. Vessels
III. Fibres
IV. Parenchyma
All the above structures are the attributes of


375) During secondary growth new meristematic tissues arrising in the cortical region of the stem are called


376) I. Monocot root
II. Dicot stem
III. Monocot stem and dicot root
IV. Dicot stem and dicot root
V. Dicot root
Which of the above have well-developed pith?


377) Mesophyll is a tissue which is present in leaf


378) I. Roots are unicellular
II. Trichomes are multicellular usually
Identify the correct statement and select the correct option


379) Narrow bands of parenchymatous tissue which passes through the secondary xylem and phloem radially
are called


380) Bark is the non-technical term which refers to


381) From the plants given below, select the monocots having secondary growth in their stem


382) Which of the three sub-zones of cortex of dicot stem performs the function of providing mechanical
strength to young stem?


383) What is/are true about heartwood?
I.It does not help in water conduction.
II.It is also called alburnum.
III.It is dark in colour but very soft.
IV.It has tracheary elements, which are filled with tannin, resin, etc.


384) Periderm is made up of
I. cork cambium
II. cork
III. secondary cortex
Select the correct combination of options


385) I. Peripheral region of the secondary xylem in dicot stem in lighter in colour and known as heart wood
II. It is involved in water and mineral conduction
Select the correct option from below


386) Fewer xylary elements that have narrow vessel are found in


387) Regulation of flow of fluid both inwardly as well as outwardly is performed by the


388) Meristamatic tissue helps in the


389) Subsidiary cells are the specialised cell in the


390) Cortex consists of three sub-zones in dicot stem, they are
I. hypodermis II. cortical layer
III. pericycle IV. endodermis V. epidermis


391) Elongation of epidermal cells which helps in the absorption of water and minerals from the soil are called


392) Choose the correct statement


393) Pericycle is present
I. Just above the phloem
II. on the innerside of endodermis
Select the correct option


394) When cut horizontally both spring and autumn wood appear in concentric rings known as


395) Epidermis covered with cuticle, bearing trichomes and few stomata is the characteristic feature of


396) Border parenchyma or bundle sheath is made up of


397) Primary function of epidermis is


398) Vascular system consists of
I. xylem
II. phloem
III. ground meristem
IV. epidermal meristem
Select the correct combination from the given options


399) In dicotyledonous roots, cambium develops in between


400) I. Parenchyma tissue II. Collenchyma tissue
III. Sclerenchyma tissue
Which of the above tissues are found in the ground tissue system?


401) Example of secondary meristem is


402) Mesophyii is well differentiated into palisade and spongy tissue in


403) I. Unicellular hair
II. Endodermis with passage cells
III. Pith small and inconspicuous
IV. Radial vascular bundle
V. 2-4 xylem and phloem
VI. Cambium ring develops between xylem and phloem
The above description refers to which of the following?


404) The outer walls of guard cells (away from stomatal pore) are …A…. While the inner walls (towards the
stomatal pore) are …B… .
Choose the correct combination of A and B


405) Intercellular spaces are found in …A… region. Intercellular spaces are absent in …B… region. Choose the
correct option for A and B


406) Large number of xylary elements having vessels with wider activity are produced in


407) I. Long tube-like structure, arranged longitudinally and associated with companion cells
II. End wall perforated in a sieve like manner to form sieve plates
Given above two character belong to which attribute of phloem


408) Xylem tissue is composed of


409) Apical meristem and intercalary meristem are called primary meristem because?


410) I. Cells are living and thin-walled and their cell walls are made up of cellulose
II. They store food material
III. The radial conduction of water in plants takes place by the help of these tissues
Which of the above feature belongs to the xylem parenchyma?


411) The surface area of leaves in monocotyledon plant can be regulated by the help of


412) I. Long cyclindrical tube like structure made up of many cells called vessel members, lignified cell wall and large central cavity
II. Devoid of protoplasm
Above characters belong to which of the following plant elements?


413) Aerating pores are present at places on the cork cambium. These are called


414) The age of tree can’t be determined by annual rings if the tree belongs to the


415) Interfascicular cambium is formed by the joining of


416) I. Primary tissues of plants add length to the roots and shoots
II. Secondary tissue of plants adds diameter to the roots and shoots
III. Cells of permanent tissue are specialised both structurally and functionally
Which of the above statement is/are true?


417) The size of vascular bundles on the leaflet depends upon the
I. leaf margin II. leaf petiole
III. leaf size IV. leaf veination
Select the correct combination of options given below


418) Periderm includes
I. Phellem
II. Phellogen
III. Phelloderm
Select the correct option


419) Axillary bud originates from


420) Outer most layer of primary plant body is


421) The most abundant tissues in plants are


422) Which of the following characters belong to sclerenchyma?
I. Consists of long narrow cells with thick lignified cell walls
II. Having few or numerous pits
III. They are usually dead and without protoplasms


423) Amphicribal vascular bundle is vascular bundle in which the


424) The …A… cells are specialised parenchymatous cells, which are closely associated with sieve tube
elements. The sieve tube elements and …B… cell are connected by pit fields presents between their common …C… walls.
Choose the correct combination of A, B and C from the options given below


425) Choose the incorrect statement


426) I. Elongated or tube like cell with thick and lignified walls and tapering ends
II. These are dead and without the protoplasm
III. The inner layers of cell walls have thickening which vary in form
The above mentioned characters belong to which of the following plant structure?


427) The first formed primary phloem is referred as ...A… The later formed primary phloem is referred as …B…
Choose the correct combination of A and B


428) Identify the type of plant tissue being represented by the set of statements given below
I. Their cells are isodiametric (they may be spherical, oval, round, etc.)
II. Their cell walls are thin and made up of cellulose
III. They may either be closely packed or have small intercellular spaces
IV. They perform functions like photosynthesis, storage, secretion, etc.


429) Cuticle is absent in which part of plant?


430) I. Made up of elongated, tapering cylindrical cells which have dense cytoplasm and nucleus
II. Cell wall composed of cellulose
III. Stores food materials
The above mentioned characters belong to which attribute of phloem?


431) Kranz anatomy is found in


432) The phloem fibres of which of the following plant is/are used commercially?
I. Jute II. Flax III. Hemp
Select the correct option


433) In any dicot root having secondary growth, the cork is the


434) On the basis of variation in form, structure, origin and development, sclerenchyma may be


435) Which statements are correct about guard cells?
I. They are modified ground tissue
II. They are chlorophyllous
III. Its outer wall is thin and inner wall is highly thickened
IV. They regulate stomatal movement for transpiration and gaseous exchange


436) Consider the following statements.
I. In a dicot root, the vascular bundles are collateral and endarch
II. The innermost layer of cortex in a dicot root is endodermis.
III . In a dicot root, the phloem masses are separated from the xylem by parenchymatous cells that are
known as the conjunctive tissue.


437) First formed primary xylem elements are called ...A… . Later formed primary xylem elements are called
…B… .
A and B in the above statement refers to


438) Gymnosperms lack which of the following structure?


439) A branch or a flower develops in the axil of the leaves by the activity of


440) During secondary growth of plants, stem phellogen cuts of cells on both sides. The outer cells gets
differentiated into …A… and the inner cells gets differentiated into …B… cortex
Choose the correct combination of A and B with reference to above statement


441) Vascular system includes …A… bundles, which can be seen in the veins and the …B… . The size of vascular
bundles are dependent on the size of …C… . The veins vary in thickness in the reticulate venation of the
…D… leaves
Choose the correct combination of A to D


442) Estimation of the age of the tree is done by


443) Sclereids are commonly found in the
I. fruits wall of nuts
II. pulp of fruit like guava and pear
III. seed coat of legumes
IV. micropile of pea
Select the correct combination


444) The cells of the endodermis are rich in …A… grains and layer is referred to as …B… sheath. Select the
correct combination of A an B from the options given below


445) A tree grows 5 cm per year. What will be the height of a board fixed 10 cm above the base after 10 years?


446) I. Found only in sporophytic phase of life cycle
II. May contain enzymes that are biologically active
III. Often contain strengthening polymers
Select the correct option for cell wall


447) Vascular bundle without cambium is called


448) Specialised regions of plants having active cell division are called


449) I. During secondary growth, a complete ring is formed by vascular cambium
II. Interfascicular cambium originates from medullary ray cells
III. Vascular cambium form xylem on the inside and phloem on the outside due to differential action of
hormones
Select the correct combination of option


450) I. Dicotyledon leaf is also called isobilateral leaf
II. Monocotyledon leaf is also called dorsoventral leaf
Select the correct option from the options given below


451) Which of the following statements are not true?
I.Cork cambium is otherwise called phellogen.
II.Cork is otherwise called phellem.
III.Secondary cortex is otherwise called periderm.
IV. Cork cambium, cork and secondary cortex are collectively called phelloderm


452) In leaves, the ground tissues consists of


453) Continuous ring of cambium is formed by


454) Ground tissue does not include
I. epidermis
II. vascular bundle
III. sclerenchyma
IV. collenchyma
V. parenchyma
Select the right combination from the above given options


455) Identify the correct order of the components with reference to their arrangement from outer side to inner
side in a woody dicot stem.
I.Secondary cortex
II.Autumn wood
III.Secondary phloem
IV.Phellem


456) …A… are structures present in the epidermis of leaves. They regulate process of transpiration and …B…
exchange. It is composed of two bean-shaped cells known as …C… cells.
Choose the correct combination of A, B and C from the following options


457) In a vessel, septa among the adjoining cells get dissolved.
Companion cells are component of phloem.


458) The quiescent centre acts as a reservoir of relatively resistant cells, which constitute a
permanent source of active initials.
The cells of the inactive region of quiescent centre become active when the previous
active initials get damaged.


459) Long distance flow of photo assimilates in plants occurs through sieve tubes.
Mature sieve tubes have parietal cytoplasm and perforated sieve plates.


460) All the endodermal cells of the root do not contain Casparian thickenings on their radial
and transverse walls.
Passage cells are found in the root endodermis


461) Apical and intercalary meristems contribute to the growth in length while the lateral
meristems bring increase in girth in maize.
Apical and intercalary meristems always increase the height of plants.


462) Many organs of aquatic plants float in water.
Large air gaps are present in the collenchyma tissues of lotus leaf.


463) In collateral vascular bundles, phloem is situated towards inner side.
In monocot stem, cambium is present


464) Libriform fibres are true fibres.
Libriform fibres develop from non-functional tracheids by reduction.