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.
| 1251. |
Find odd one w.r.t. plants having green succulent stemA. OpuntiaB. EuphorbiaC. CitrusD. Both 1 and 2 |
| Answer» Correct Answer - C | |
| 1252. |
Select the pair which contains monocotyledonous families.A. Solanaceae and BrassicaceaeB. Fabaceae and AsteraceaeC. Liliaceae and PoaceaeD. None of these |
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Answer» Correct Answer - C Liliaceae (Lily family) and poaceae (= Gramineae, grass family) are the two monocot families. |
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| 1253. |
All given modification belong to adventitious roots, exceptA. Reproductive root of AsparagusB. Storage roots of sweet potatoC. Conical roots of carrotD. Prop roots of banyan tree |
| Answer» Correct Answer - C | |
| 1254. |
Roots are modified to perform specific functions other than their normal functions.The given figure shows modification of the roots of mangrove plant.Select the incorrect option regarding it. A. The stilt roots of red mangrove help in breathingB. The root system is highly entangled, huge and extensive under the water.C. A large number of animals such as small fishes, crustaceans, seahorses, etc. find shelter in this root systemD. Besides providing mechanical support, these roots also perform photosynthetic functions in the plant. |
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Answer» Correct Answer - D Red mangroves, which can survive in the most inundated areas, prop themselves above the water level with the help of stilt roots and can then absorb air (oxygen) through the lenticels present in the stilt roots. The given figure represents the stilt roots of Rhizophora species (e.g., R mangle), commonly called red mangroves. Stilt root arise from the stem or stem branches and grow towards the soil where the develop an underwater and develop a huge and extensive underwater root system where countless animals espicially small fishes, sea fishes, sea horses etc., find shelter. |
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| 1255. |
What is meant by modification of root? What type of modification of root is found in the (a) Banyan tree (b) Turnip (c) Mangrove trees |
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Answer» Modification of root is change in the shape, size, structure and normal functioning of root to perform some secondary functions. (a) Banyan tree - Prop roots (b) Turnip - Napiform fleshy tap roots (c) Mangrove tree - Pneumatophores (respiratory roots) |
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| 1256. |
Gymnosperms are also called soft wood spermatophytes because they lackA. Phloem fibresB. Thick-walled tracheidsC. Xylem fibresD. Cambium |
| Answer» Correct Answer - C | |
| 1257. |
Eye of potato isA. Axiliary budsB. Accessory budC. Adventitious budD. Apical bud |
| Answer» Correct Answer - A | |
| 1258. |
How do you distinquish between hypogeal germination and epigeal germination ? What is the role of cotyledon (s) and the endosperm in the germination of seeds ? |
| Answer» In hypogeal germination the colyledons remain under the soil during germination of seed and in epigeal germination cotyledons come out of the soil during seed germination. Cotyledons provide nutrition to the embryo during seed germination and helps in the differentiation of embryo to seedling. Endosperm provide food to the zygote during embryogenesis, i.e., for the formation of embryo. | |
| 1259. |
The plant showing epigeal germination isA. alliumB. cocounutC. peaD. mango |
| Answer» Correct Answer - A | |
| 1260. |
Replum is characteristic of ovary ofA. CruciferaeB. compositaeC. LabiataeD. Liliaceae |
| Answer» Correct Answer - A | |
| 1261. |
Micropyle of seed facilitates in the entry of:A. male gametesB. pollen tubeC. waterD. gases |
| Answer» Correct Answer - C | |
| 1262. |
In swampy areas like the sunderbans in West Bengal, plants bear special kind of roots called ……. |
| Answer» Pneumatophores or respiratory roots. | |
| 1263. |
Tegmen develops fromA. inner integumentB. funiculusC. outer integumentD. chalaza |
| Answer» Correct Answer - A | |
| 1264. |
Aleurone layer helps inA. storage of food in endospermB. protection of embryoC. utilization of stored food by secreting enzymesD. All the above |
| Answer» Correct Answer - C | |
| 1265. |
Select a plant which grows in swampy areas, giving reasons. Plant A : Develops haustoria for absorption of food. Plant B : Develops prop roots for support. Plant C : Develops pneumatophores to get oxygen for respiration. |
| Answer» Plant C grows in swampy areas because it develops respiratory roots or pneumatophores. These roots possess lenticels for gaseous exchange. There is a high concentration of salt in swamps where oxygen is not available for roots. | |
| 1266. |
Haustoria help in survival ofA. epiphytesB. saprophytesC. parasitesD. all of these |
| Answer» Correct Answer - C | |
| 1267. |
Which one of the following sets represents the example of sucking roots ?A. bryophyllum begonia laranthusB. dahiliaC. aspargus pandanusD. cuscuta loranthus bryophyllum |
| Answer» Correct Answer - D | |
| 1268. |
Sucking roots are found inA. betelB. cuscutaC. mangiferaD. solanum |
| Answer» Correct Answer - B | |
| 1269. |
The radicle in maize has two coveringsA. outer coleorhiza and inner root capB. inner colerhiza and outer root capC. outer coleoptile and inner root capD. inner coleoptile and inner root cap |
| Answer» Correct Answer - A | |
| 1270. |
Sweet potato is homologous toA. GingerB. TumipC. PotatoD. Colocasia |
| Answer» Correct Answer - B | |
| 1271. |
Haustoria or sucking roots occur inA. BetalB. OrchidsC. CuscutaD. Tinospora |
| Answer» Correct Answer - C | |
| 1272. |
Which of the following groups of plants are propagated through underground rootA. Bryophyllum and kalanchoeB. Ginger, potato, onion and zamikandC. Pistia, chrysanthemum and pineappleD. Sweet potato, asparagus, topioca and dahila |
| Answer» Correct Answer - D | |
| 1273. |
Roots play insignificant role in absorption of water inA. SunflowerB. PistiaC. PeaD. Wheat |
| Answer» Correct Answer - B | |
| 1274. |
In some plants such as Rhizophora growing in swampy areas, many roots come out of the ground and grow vertically upwards. Such roots and calledA. PneumatophoresB. Prop rootsC. Stilt rootsD. none of the above. |
| Answer» Correct Answer - A | |
| 1275. |
Choose the correct statement about haustorial (Parasitic) roots of Cuscuta.A. These roots develop contact with xylem of host.B. These develop contact with phloem of host to get food.C. These develop contact with pericycle and lateral roots of hostD. |
| Answer» Correct Answer - B | |
| 1276. |
Cotyledon of maize grain is calledA. ScutellumB. PlumuleC. ColeorhizaD. Coleoptile |
| Answer» Correct Answer - A | |
| 1277. |
Maize or wheat grain is aA. seedB. cypselaC. single seeded fruitD. an ovule |
| Answer» Correct Answer - C | |
| 1278. |
Sweet potato is a modifiedA. StemB. Adventitious rootC. Tap rootD. Rhizome |
| Answer» Correct Answer - B | |
| 1279. |
Sweet potato is modification ofA. LeafB. RootC. StemD. Flowering axis |
| Answer» Correct Answer - B | |
| 1280. |
Sweet potato is a modifiedA. RhizomeB. Tap rootC. Adventitious rootD. Stem |
| Answer» Correct Answer - C | |
| 1281. |
Sweet potato is homologous toA. GingerB. TurnipC. PotatoD. Colocasia |
| Answer» Correct Answer - B | |
| 1282. |
Pneumatophores occur inA. Submerged hydrophytesB. Carnivorous plantsC. Free-floating hydrophytesD. Halophytes |
| Answer» Correct Answer - D | |
| 1283. |
The adventitious, mechanical, freely, vertically hanging downwards roots from stem of Banyan tree are calledA. prop rootsB. stilt rootsC. epiphytic rootsD. All correct. |
| Answer» Correct Answer - A | |
| 1284. |
Adventitious roots areA. those arising from any part of plant other than radicleB. found only in monocotsC. found in bryophytes alsoD. all of the above |
| Answer» Correct Answer - A | |
| 1285. |
Cotyledon of maize grain is calledA. ColeorhizaB. ColeoptileC. ScutellumD. Plumule |
| Answer» Correct Answer - C | |
| 1286. |
Potato and sweet potatoA. Have edible parts which are homologous organsB. Have edible parts which are analogous organsC. Have been introduced in India from the same placeD. Are two species of the same genus |
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Answer» Correct Answer - B Potato is a modification of stem and sweet potato is a modification of root. |
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| 1287. |
A vertically growing thick usually unbranched underground stem with more diameter than length isA. suckerB. stragglingC. cormD. rootstock |
| Answer» Correct Answer - C | |
| 1288. |
An underground stem without adventitious roots isA. PotatoB. OnionC. ColocaciaD. All correct. |
| Answer» Correct Answer - A | |
| 1289. |
In Agave, bulbil is a modification ofA. Vegetative budB. Cauline budC. Terminal budD. Floral bud |
| Answer» Correct Answer - D | |
| 1290. |
Stem is most reduced inA. PhyllocladeB. BulbilC. CormD. Rhizome |
| Answer» Correct Answer - B | |
| 1291. |
Aroids store food inA. InflorescenceB. Enlarged rootC. Leaf basesD. Swollen stem |
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Answer» Correct Answer - D They store food material in the basal portion and formed new corms e.g., Colocasia, Alocasia. |
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| 1292. |
A leaf is identified fromA. Flat green laminaB. Presence of leaf blade and petioleC. Presence of axillary budD. Occurrence of chlorophyll |
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Answer» Correct Answer - C Leaf is a thin flattened out growth of the plant arising from the node of the stem and having a bud in its axil. |
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| 1293. |
The underground modification of stem occurs for which one of the following function ?A. respirationB. perennationC. vegetative reproductionD. anchorage |
| Answer» Correct Answer - B | |
| 1294. |
Tricarpellary syncarpous gynoecium is found in flowers ofA. SolanaceaeB. FabaceaeC. PoaceaeD. Liliaceae |
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Answer» Correct Answer - D Liliaceae represents `G_((3))`. This family includes Plants like garlic, onion, tulip, indigo, etc |
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| 1295. |
Stem modified for photosynthetic function by appearing like leaves are known as Or Leaves are changed into spines in xerophytic structures CalledA. PhyllodeB. PhyllocladeC. CladodeD. Tendril |
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Answer» Correct Answer - B Phylloclade is a modification of stem because the stem modifies into green fleashy leaf life structure having distinct nodes and internodes. |
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| 1296. |
Which of the following is not a stem modificationA. Thorns of CitrusB. Tendrils of cucumberC. Flattened structures of OpuntiaD. Pitcher of Nepenthes |
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Answer» Correct Answer - D Pitcher of Nepenthes is modified leaf. It helps to trap insects, in insectivorous plants |
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| 1297. |
Stem modified for photosynthetic function by appearing like leaves are known as Or Leaves are changed into spines in xerophytic structures CalledA. phyllodesB. phyllocladesC. scalesD. cladodes |
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Answer» Correct Answer - B Phylloclades are aerial modified stem, in which stem becomes thick, fleshy succulent, green and perform the function of photosynthesis. The leaves are reduced to spines in this. |
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| 1298. |
Leaves are modified into spines inA. nepenthesB. opuntiaC. australian acaciaD. utraicularia |
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Answer» Correct Answer - B Opuntai is a xerophytic pnat in which normal leaves are not well developed and fall off very soon and small leaves of axillary buds are transforme into spiines these modified spines ar protective and are also helpful in reducing the rate of transpiration |
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| 1299. |
Assertion. Epigynous ovary is always inferior. Reason. All the floral parts lie above the level of ovary in epigynous condition and, therefore, ovary becomes inferior.A. If both Assertion and Reason are true and the Reason is a correct explanation of the Assertion.B. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion.C. If Assertion is true but the Reason is false.D. If both Assertion and Reason are false. |
| Answer» Correct Answer - A | |
| 1300. |
Leaves become modified into spines in :-A. opuntiaB. peaC. onionD. silk cotton |
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Answer» Correct Answer - A Leaves are modifed into spines in opunitia so as to reduce the surface area and minmize rate of water loss by evaporation and transpiration besides they also provide protection the palnt from grazzing animlas |
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