NCERT CLASS 11 | TOPIC : PLANT KINGDOM-GYMNOSPERMS-ANGIOSPERMS | QB-5 | NEET BIOLOGY ONLINE TEST

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NCERT CLASS 11 | TOPIC : PLANT KINGDOM-GYMNOSPERMS-ANGIOSPERMS | QB-5 | NEET BIOLOGY ONLINE TEST

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It contains 57 important questions. Choose the most correct answer. Then check your answer. Try again if there are errors. Regards : kalvisolai.net

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1 ➤ 144. Naked seed plants are

(a) Algae (b) Bryophyte (c) Angiosperms (d) Gymnosperms

2 ➤ 145. Ovules are not enclosed by the ovaries in

(a) Pteridophytes (b) Angiosperms (c) Gymnosperms (d) All of these

3 ➤ 146. The tallest gymnosperms is

(a) Sequoia (red wood tree) (b) Pinus (c) Cycas (d) Ginkgo

4 ➤ 147. Coralloid roots having association with N2 fixing bacteria are found in

(a) Pinus (b) Cedrus (c) Sequoia (d) Cycas

5 ➤ 148. In gymnosperms, the mycorrhizal association are found in

(a) Cycas (b) Pinus (c) Cedrus (d) All of these

6 ➤ 149. Gymnosperms

(a) Are naked seeds plants (b) Have tap roots (c) Are heterosporous (d) All of these

7 ➤ 150. Which of the following are correct for gymnosperms?

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I. Have adventitious root system.

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II. The leaves in gymnosperms can withstand extreme temperature, humidity and wind.

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III. Microspores are produced in microsporangia.

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IV. They include medium or tall sized trees and shrubs.

(a) I and III (b) I, II and II (c) II, III and IV (d) I and IV

8 ➤ 151. In cycas

(a) The stems are unbranched. (b) The pinnately compound leaves persist for years. (c) Have symbiotic association with n2 fixing cynobacteria. (d) All are correct.

9 ➤ 152. Which of the following statements are correct for conifers?

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I. Needle like leaves to reduce surface area.

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II. Thick cuticle on leaves.

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III. Sunken stomata to reduce water loss.

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IV. The main plant body is gametophyte.

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(a) II and III (b) IV only (c) I only (d) II, I and III

10 ➤ 153. Which of the following are correct for gymnosperms?

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I. They are heterosporous.

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II. They are the first vascular plants.

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III. Posses fruits

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IV. Requires water for fertilization.

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(a) I (b) I and II (c) II and III (d) I, II, III and IV

11 ➤ 154. Which of the following sequence is correct?

(a) Strobili–Sporophylls→Sporangia→Spores (b) Strobili–Sporangia→Sporophylls→Spores (c) Sporophylls–Strobili→Sporangia→Spores (d) Spores–Sporangia→Strobili→Cones

12 ➤ 155. Male gametophyte which is highly reduced and confined to only limited numbers of cells is called

(a) Antherozoid (b) Spermatozoid (c) Pollen grain (d) All of these

13 ➤ 156. Male and female cones are formed on the same tree of

(a) Cycas (b) Pinus (c) Both (a) and (b) (d) None of these

14 ➤ 157. In gymnosperms

(a) Pollen grains germinate inside the ovary. (b) The development of pollen grain takes place within the microsporangia. (c) The cones barring megasporophylls are called male cones or male strobili. (d) All are correct

15 ➤ 158. Megaspore mother cell

(a) Develops from one of the cell of nucleus (b) Forms four megaspore after meiosis (c) Formed in the megasporangium (d) All of these

16 ➤ 159. The female gametophyte of gymnosperms

(a) Bear two archegonia (b) Retained within megasporangium (c) Is unicellular (d) Both (a) and (b)

17 ➤ 160. In gymnosperms, the male and female gametophyte

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I. Do not have independent free living existence.

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II. Remain within the sporangia retained on parent sporophyte.

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III. May be born on same or different tree.

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IV. Perform meiosis to produce gametes.

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(a) I and II (b) II and III (c) III and IV (d) All

18 ➤ 161. Pollination in gymnosperms takes place by

(a) Wind (b) Water (c) Only physical factors like wind and water (d) All of these

19 ➤ 162. Angiosperms include

(a) Vascular plants with naked seeds (b) Vascular plants with covered seeds (c) Few vascular plants with naked seeds (d) Few vascular plants with covered seeds

20 ➤ 163. Microscopic angiosperm is

(a) Sequoia (b) Eucalyptus (c) Wolfia (d) Never microscopic

21 ➤ 164. Angiosperms include

(a) Massive woody trees (b) Shrubs and herbs (c) Ranges from tiny microscopic plants to tall trees (d) None of these

22 ➤ 165. The height of eucalyptus tree is approximately

(a) 100 m (b) 1000 m (c) 10 m (d) 10‒20 m

23 ➤ 166. Male sex organ in angiosperm is located in

(a) Male cone (b) Sporophyll (c) Flower (d) Carpel

24 ➤ 167. Male sex organ in flower is

(a) Antheridia (b) Stamens (c) Spermatangia (d) Nucule

25 ➤ 168. The female sex organ of flower is called

(a) Archegonia (b) Nucule (c) Oogonia (d) Pistil

26 ➤ 169. The pistil in flower encloses

(a) One ovule (b) Only two ovules (c) Three ovules (d) One too many ovules

27 ➤ 170. Embryo sacs in angiosperms is

(a) Male gametophyte (b) Well-developed female gametophyte (c) Highly reduced female gametophyte (d) Well-developed female sporophyte

28 ➤ 171. Embryo sac of angiosperms posses

(a) Egg apparatus (b) Synergids (c) Antipodal (d) All of these

29 ➤ 172. Egg apparatus of angiosperms contain

(a) One egg cell (b) Two synergids (c) Both (a) and (b) (d) Two antipodals

30 ➤ 173. The cells of embryo sac are

(a) Diploid (b) Haploid (c) May be haploid or diploid (d) None of these

31 ➤ 174. Diploid secondary nucleus in embryo sac of angiosperm is the product of

(a) Fusion of two synergid cells (b) Fusion of two antipodal cells (c) Fusion of two polar nuclei (d) Fusion of egg cell and antipodal cell

32 ➤ 175. The pistil in angiosperm is made up of

(a) Ovary (b) Stigma (c) Style (d) All of these

33 ➤ 176. Ovary is the characteristic feature of

(a) Gymnosperms (b) Angiosperm (c) Pteridophyte (d) All of these

34 ➤ 177. In double fertilization

(a) Male gamete fuses with egg cell to form zygote. (b) Male gamete fuses with diploid endosperm nucleus to produce triploid primary endosperm nucleus. (c) Both (a) and (b) (d) Fertilization takes place in two plants simultaneously.

35 ➤ 178. Synergids and antipodals

(a) Develop into new plants (b) Are diploid (c) Degenerate after fertilization (d) Are produced in male gametophyte

36 ➤ 179. Fruit formation in angiosperm takes place by

(a) Development of ovule after fertilization (b) Development of ovary after fertilization (c) Axillary bud (d) Terminal bud

37 ➤ 180. Double fertilization is the unique characterisitic feature of

(a) Angiosperm (b) Gymnosperm (c) Pteridophyte (d) Dicotyledons only

38 ➤ 181. Zygote after multiplication in angiosperm develop in

(a) Endosperm (n) (b) Embryo (n) (c) Endosperm (d) Embryo (2n)

39 ➤ 182. Endosperm in angiosperm is formed

(a) Before fertilization (b) After fertilization (c) Vary from species to species (d) All of these

40 ➤ 183. Meiosis in plants can take place in

(a) Only haploid species (b) Only diploid species (c) Both in haploid as well as diploid species (d) None of these

41 ➤ 184. The haploid plant body produces _______ and is referred to as _______

(a) spores, sporophyte (b) gametes, gametophyte (c) zoospores, zoosporangia (d) conidia, conidiophores

42 ➤ 185. Haploid spore divides by _______ to form haploid plant body

(a) Mitosis (b) Meiosis (c) Amitosis (d) Any of these

43 ➤ 186. In haplontic life cycle, the sporophytic generation is seen by

(a) Well-developed multicellular sporophyte (b) Zygote (b) Embryo (d) None of these

44 ➤ 187. In haplontic life cycle, the zygote divides by

(a) Mitosis (b) Meiosis (c) Any of these (d) Amitosis

45 ➤ 188. Volvox, spirogyra chlamydomonas come under

(a) Haplodiplontic life cycle organism (b) Diplohaplontic organism (c) Haplontic life cycle (d) Diplontic life cycle

46 ➤ 189. Sporophyte, dominant, photosynthetic and independent phase of plant represents

(a) Haplontic (b) Diplontic (c) Diplohaplontic life cycle (d) Both (b) and (c)

47 ➤ 190. Diplontic life cycle is seen in

(a) Angiosperms and gymnosperms (b) Spermatophytes (c) Both (a) and (b) (d) Pteridophyte

48 ➤ 191. When both the phases of life cycle are multicellular, i.e., haploid and diploid phases are more than one celled

(a) Life cycles are called haplodiplontic (b) They differ in the dominant phase (c) They are in pteridophytes and bryophytes (d) All of these

49 ➤ 192. In bryophytes

(a) Dominant, diploid, multicellular sporophyte alters dominant with multicellular gametophytes. (b) Dominant haploid multicellular gametophyte alters with diploid sporophyte. (c) The plant body shows diplontic life cycle. (d) The plant body shows haplontic life cycle.

50 ➤ 193. Most of the alga show

(a) Haplontic life cycle (b) Diplontic life cycle (c) Haplodiplontic life cycle (d) None of these

51 ➤ 194. Algae showing haplodiplontic life cycle are

(a) Spirullina and spirogyra (b) Ectocarpus and polysiphonia (c) Kelps (d) Both (b) and (c)

52 ➤ 195. Which alga shows diplontic life cycle?

(a) Chara (b) Fucus (c) Ectocarpus (d) Polysiphonia

53 ➤ 196. How many organisms show haplodiplontic life cycle?

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Sphagnum, Volvox, Ulothrix, Marchantia, Polytrichum, Selaginella, Pinus, Cedrus,Ectocarpus, Polysiphonia

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(a) 8 (b) 6 (c) 7 (d) 9

54 ➤ 197. How many organisms show diplontic life cycle?

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Selaginella, Equisetum, Cycas, Cedrus, Ectocarpus, Fucus, Sequoia

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(a) 7 (b) 5 (c) 4 (d) 6

55 ➤ 198. Which of the organisms show haplontic life cycle?

(a) Chlamydomonas, volvox (b) Ectocarpus, polysiphonia (c) Fucus (d) All of these

56 ➤ 199. In diplontic life cycle gametogenesis takes place by

(a) Mitosis (b) Meiosis (c) Both (a) and (b) (d) Neither mitosis nor meiosis

57 ➤ 200. Gametogenesis in organism showing haplontic life cycle takes place in

(a) Mitosis (b) Meiosis (c) Both (a) and (b) (d) Amitosis

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