InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
Stomata are distributed more on the lower surface than on the upper surface inA. equifacial leafB. bifacial leafC. unifacial leafD. both a and b |
| Answer» Correct Answer - B | |
| 202. |
In an unifacial leaf, the stomata occur inA. lower epidermisB. upper epidermisC. Both (a) and (b)D. petiole |
| Answer» Correct Answer - C | |
| 203. |
Amphicribral vascular bundles areA. EndarchB. ExarchC. MesarchD. All of these |
| Answer» Correct Answer - C | |
| 204. |
Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous stem byA. Position of protoxylemB. Absence of secondary xylemC. Absence of secondary phloemD. presence of cortex |
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Answer» Correct Answer - A Anatomoicallly fairly old dicotyledonous root is distinguished from dicotyledonous stem by position of porotoxylem. |
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| 205. |
A diagram of T.S. of dicot root is given, select the option which correctly labels A, B,C,D and EA. `{:(A,B,C,D,E),("Protoxylem","Metaxylem","Phloen","Pericycle","Endodermis"):}`B. `{:(A,B,C,D,E),("Metaxylem","Protoxylem","Phloen","Pericycle","Endodermis"):}`C. `{:(A,B,C,D,E),("Protoxylem","Metaxylem","Phloen","Endodermis","Pericycle"):}`D. `{:(A,B,C,D,E),("Metaxylem","Protoxylem","Phloen","Endodermis","Pericycle"):}` |
| Answer» Correct Answer - B | |
| 206. |
A diagram of T.S. of dicot root is given, select the option which correctly labels A, B,C,D and EA. `{:(A="Endodermis",,,,),(B="Conjunctive tissue",,,,),(C="Metaxylem",,D="Protoxylem",,),(E="Phloem",,D="Metaxylem",,):}`B. `{:(A="Endodermis",,B="Pith",,),(C="Protoxylem",,D="Metaxylem",,),(E="Protoxylem",,,,),(F="Conjuntive tissue",,,,):}`C. `{:(A="Pericycle",,,,),(B="Conjuctive tissue",,C="Metaxylem",,),(D="Protosylem",,E="Phloem",,),(,,,,):}`D. `{:(A="Endodermis",,,,),(B="Conjunctive tissue",,,,),(C="Protoxylem",,D="Metaxylem",,),(E="Phloem",,F="Pith",,):}` |
| Answer» Correct Answer - D | |
| 207. |
Water stomata are found inA. Plants inhabiting humid regionB. Plants inhabiting dry regionsC. All plantsD. Plants lacking normal stomata |
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Answer» Correct Answer - A Water stomata are usually present in leaves of aquatic plants. |
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| 208. |
When wepeel the skin of a potato tuber, we removeA. peridermB. epidermisC. cuticleD. sapwood |
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Answer» Correct Answer - A Periderm Patato is a underground stem. The outer epidermal layer of the stem is known as periderm. So when we remove skin of potato. We are actually removing the periderm. |
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| 209. |
A vesselless piece of stem possessing prominent sieve tubes would belong toA. PinusB. EucalyptusC. GrassD. Trochodendron |
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Answer» Correct Answer - D Trochodendron The species of this geneus have a very unique feature of the angiosperms, i.e, it lack vessel elements in its wood, but has prominent sieve tube cells. |
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| 210. |
Consider the following statement (A) In a dicot root, the vascular bundles are collateral and endarch (B) The inner most layer of cortex in a dicot root is endodermis (C) In a dicot root, the phloem masses are separated from the xylem by parenchymatous cells that are known as the conjunctive tissue Of these statement given aboveA. a true, b, c falseB. b true, a, c falseC. false, b, c trueD. b false, a, c true |
| Answer» Correct Answer - C | |
| 211. |
How many plants have concentric, amphicribral vascular bundles? Yucca, Dracaena, Hydrilla, Maize, Selaginella, Mango, Pteris, SunflowerA. 2B. 4C. 3D. 6 |
| Answer» Correct Answer - C | |
| 212. |
Given figures (P and Q) represent the stomatal apparatus of dicot and monocot leaves respectively. Select the option which correctly labels A, B and CA. `{:(A,B,C),("stoma","subsidiary cells","guard cells"):}`B. `{:(A,B,C),("stoma","subsidiary cells","Epidermal cells"):}`C. `{:(A,B,C),("Guard cells","stoma","Chloroplast"):}`D. `{:(A,B,C),("stoma","Guard cells","Subsidiary cells"):}` |
| Answer» Correct Answer - D | |
| 213. |
Lysigenous cavity in monocot stem vascular bundles develops by the dissolution ofA. protoxylemB. maetaxylemC. phloemD. ground tissue |
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Answer» Correct Answer - A There is a water containing lysigenous cavity in monocot stem, at the end of protoxylem vessels. It is formed by the dissolution of inner protoxylem vessel and parenchyma. |
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| 214. |
Leaves of Monocot or grass leaves and stem of bamboo, and mint grow in size to activity ofA. apical meristemB. intercalary meristemC. lateral meristemD. dermatogen |
| Answer» Correct Answer - B | |
| 215. |
endodermis of dicot stem is also calledA. Bundle sheathB. Starch sheathC. MesophylllD. Water sheath |
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Answer» Correct Answer - B Endodermis of dicot stem is also called starch sheath. |
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| 216. |
During secondary growth in dicot root, the layer that becomes outermost protective layer after the disintegration of endodermis, cortex and epiblema isA. phellemB. phellogenC. phellodermD. cork cambium |
| Answer» Correct Answer - A | |
| 217. |
Monocot leaves showA. both spongy and palisade mesophyllB. only palisade mesophyllC. only spongy mesophyllD. none of the above. |
| Answer» Correct Answer - C | |
| 218. |
The water cavity present in the xylem of maize stem vascular bundles isA. schizogenousB. hydrolyticC. lysigenousD. shizo-lysigenous |
| Answer» Correct Answer - D | |
| 219. |
Vascular cambium in dicot root develops from Or In dicot root , initiation of lateral root and vascular cambium during secondary growth takes place fromA. EndodermisB. PericycleC. Conjunctive parenchymaD. Both (b) and (c) |
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Answer» Correct Answer - D Vascular cambium is formed secondarily from conjuctive parenchyma cells lying just below each phloem strand. The cells of pericycle lying out side the protoxylem also become meristematic to form part of strips of cambium. |
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| 220. |
Vascular cambium of dicot root is purely secondary in origin and airse fromA. Cells of conjuctive parenchyma just below phloemB. Cells of pericycle just outside protoxylemC. Cells of parenchyma between xylem and pholemD. More than one option is correct |
| Answer» Correct Answer - D | |
| 221. |
endodermis of dicot stem is also calledA. Bundle sheathB. Starch sheathC. MesophyllD. Water channel |
| Answer» Correct Answer - B | |
| 222. |
What is the true about a monocot leaf?A. Presence of reticualte venationB. Absence of bulliform cells.C. Absence of vascualr bundlesD. Absence of differential mesophyll |
| Answer» Correct Answer - d | |
| 223. |
Starch grains are abundant in the endodermal cells ofA. Monocot rootB. Dicot stemC. Monocot stemD. Dicot root |
| Answer» Correct Answer - B | |
| 224. |
Stem of barley showsA. Presence of collenchyma in hypodermisB. Scattered vascular bundlesC. Presence of parenchymatous pericytesD. Presence of parenchymatous pericytes. |
| Answer» Correct Answer - B | |
| 225. |
Seat of origin of lateral root and formation of cork cambium are features related toA. EndodermisB. PericycleC. HypodermisD. Pith rays |
| Answer» Correct Answer - B | |
| 226. |
Leaf mesophylls are composedofA. Pallisade parenchymaB. Spongy parenchymaC. Both of themD. None of these |
| Answer» Correct Answer - C | |
| 227. |
Origin of lateral root of secondary root isA. ExogenousB. EndogenousC. LysigenousD. Schizogenous |
| Answer» Correct Answer - B | |
| 228. |
Scattered vascular bundles are the feature ofA. monocot stemB. dicot stemC. monocot leafD. dicot leaf |
| Answer» Correct Answer - A | |
| 229. |
Knots in stems are formed due toA. Tumors formed due to bacterial infection of woundsB. Outgrowth of seconday tissue over woundsC. Injury caused by insectsD. None of the above |
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Answer» Correct Answer - B Knots : When wounds around cells undergo rapid cell division, then wound is covered by cells but the wound is not completely healup, so in adult stem knots are established. |
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| 230. |
Which of the following layer in dicot stem provies mechanical strength to the young stem?A. EpidermisB. HypodermisC. EndodermisD. Cortical layer |
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Answer» Correct Answer - B Hypodermis layer in dicot stem provides mechanical strength to the young stem. |
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| 231. |
Vascular bundles are scattered inA. Monocot stemB. Monocot rootC. Dicot stemD. Dicot root |
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Answer» Correct Answer - A Numerous vascular bundles occur scattered in the gound tissue of monocot stem. |
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| 232. |
The vascular cambium in dicots isA. LateralB. ApicalC. IntercalaryD. Secondary |
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Answer» Correct Answer - A Vascular cambium is a lateral meristem. |
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| 233. |
What is the role of vascular cambium in dicots? |
| Answer» Vascular cambium is the meristematic tissue whose cells possess the ability to divide. The cells of vascular cambium give rise to the secondary xylem and secondary pholem tissues during secondary growth in the dicots which results in the increases in the girth of dicot stems and roots. Hence, vascular cambium participates in the secondary growth of dicots. | |
| 234. |
Name the part of general cortex in dicot root which is made up barrel shpaed cells. |
| Answer» Endodermis is made up of barrel shaped cells having suberised casparian strips. | |
| 235. |
Name one structure which is very distinct in roots but poorly developed or even absent in stems. |
| Answer» Endodermis. It is is very distinct with characterisitc strips in roots but properly developed or even absent in stems. | |
| 236. |
What is the difference in the appearance of spring and autumn wood? |
| Answer» Spring wood is lighter in colour whereas autumn wood is darker in colour. | |
| 237. |
What is the role of bulliform cells in the grasses? |
| Answer» They minimise the water loss during the conditions of water stress or drought by making the leaves curl invwards. | |
| 238. |
Pericycle of dicot root does not take part in the formation ofA. cambiumB. lateral rootsC. root hairsD. cork cambium |
| Answer» Correct Answer - C | |
| 239. |
In root , pericycle gives rise toA. Branch root and cork cambiumB. Cortex and pithC. Epidermis and vascular bundlesD. Xylem and phloem |
| Answer» Correct Answer - A | |
| 240. |
The root cap is not used in absorption of water due toA. Presensce of root hairsB. Absence of root hairsC. Its presence in elongation zoneD. None of these |
| Answer» Correct Answer - B | |
| 241. |
One of the characteristic of sieve tube isA. It is a part of phloemB. Function is transport of inorganic solutesC. It is dead cellD. Sieve plate is not present |
| Answer» Correct Answer - A | |
| 242. |
Both apical meristem and intercalary meristem are ______Meristems.A. primaryB. secondaryC. lateralD. both b and c |
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Answer» Correct Answer - A Primary meristems are those meristematic tissues which are derived directly from the meristems of the embryo. Depending upon their position, primary meristems are of three types: apical, intercalary and lateral. |
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| 243. |
Meristematic cells haveA. Thick cell wall and large intercellular spacesB. Thick cell wall and no intercellular spaceC. Thin cell wall and large intercellular spacesD. Thin cell wall and no intercellular spaces |
| Answer» Correct Answer - D | |
| 244. |
Meristematic cells haveA. thick cell wall and large intercellular spacesB. thick cell wall and no intercellular spacesC. thin cell wall and large intercellular spacesD. thin cell wall and no intercellular spaces |
| Answer» Correct Answer - D | |
| 245. |
Meristematic cells haveA. Thin cell walls and large intercellular spacesB. Thin cell walls and no intercellular specesC. Thick cell walls and large intercellular spacesD. Thick cell walls and small intercellular spaces |
| Answer» Correct Answer - B | |
| 246. |
Lignin is the main constituent ofA. Woody tissuesB. Growing tissuesC. Phloem fibresD. Cortex |
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Answer» Correct Answer - A Lignin is a deposition of cell wall. |
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| 247. |
Read the followig statements regarding meristematic cells and select the correct ones. (i). Cells possess the ability to grow and divide. (ii). Cells have dense cytoplasm with prominent nucleus. (iii). Well developed ER and mitochondria are presentA. (i) and (ii)B. (ii) and (iii)C. (i) and (iii)D. (i), (ii) and (iii) |
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Answer» Correct Answer - A In meristematic cells, ER is small and poorly developed wheareas mitochondira have simple structure and proplastids are present instead of plastids. |
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| 248. |
Commericial cork is obtained fromA. MangoB. Oak (Quercus suber)C. Ficus religiosaD. Pinus |
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Answer» Correct Answer - B In Ork (Quercus suber) which yields bottle cork, the cavities of cork cells are filled with air which makes the cork light in weight . It also provides thermal insulating qualities. |
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| 249. |
Commericial cork is obtained fromA. Berberis/ BarberryB. Salix/ WillowC. Quercus/OakD. Betula/ Birch |
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Answer» Correct Answer - c Cork or phellem develops from cork cambium and is made up of dead suberised and rectangular cells which are filled with air and tannins . Cork is protective and is obtained commercially from Quercus suber (cork oak , bottle cork). |
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| 250. |
An oranised and differentiated cellular structure having cytoplasm but no nucleus isA. vesselsB. xylem parenchymaC. sieve tubesD. tracheids |
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Answer» Correct Answer - c Sieve tubes are food conducting elements of phloem They possess nucleus in the young stage but disappers in mature ones . The central part of sieve tube has an organised and differentiated cellular structure with a network of cytoplasmic strands , though the perpheral cytoplasm is thin and tonoplast is absent. |
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