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Friday, April 12, 2024

NEET Biology Previous year MCQ Bank With Answer Key - 14

261. Cycas have two cotyledons but not included in angiosperms because of

(1) Circinate ptyxis

(2) Naked ovules

(3) Compound leaves

(4) Seems like monocot


262. A research student collected certain alga and found that its cells contained both chlorophyll a and chlorophyll b as well as phycoerythrin. The alga belongs to

(1) Chlorophyceae

(2) Rhodophyceae

(3) Phaeophyceae

(4) Bacillariophyceae


263. Floridean starch is found in

(1) Myxophyceae

(2) Chlorophyceae

(3) Cyanophyceae

(4) Rhodophyceae


264. One of the most important reasons why wild plants should thrive is that they are good sources of

(1) genes for resistance to disease and pests

(2) highly nutritive animal feed

(3) very rare and highly sought after fruits of medical importance

(4) unsaturated edible oils


265. In Ferns meiosis occurs when

(1) spores are formed

(2) spore germinates

(3) antheridia and archegonia are formed

(4) gametes are formed


266. Which one pair of examples will correctly represent the grouping Spermatophyta according to one of the schemes of classifying plants?

(1) Pinus, Cycas

(2) Ginkgo, Pisum

(3) Rhizopus, Triticum

(4) Acacia, Sugarcane


267. Which one of the following pairs of plants are not seed producers?

(1) Funaria and Ficus

(2) Funaria and Pinus

(3) Ficus and Chlamydomonas

(4) Fern and Funaria


268. Sexual reproduction in Spirogyra is an advanced feature because it shows

(1) same size of motile sex organs

(2) physiologically differentiated sex organs

(3) morphologically different sex organs

(4) different sizes of motile sex organs


269. Which of the following is without exception in angiosperms?

(1) secondary growth

(2) presence of vessels

(3) autotrophic nutrition

(4) double fertilisation


270. Which of the following plants produces seeds but not flowers?

(1) Peepal

(2) Maize

(3) Pinus

(4) Mint


271. Peat Moss is used as a packing material for sending flowers and live plants to distant places because

(1) it serves as a disinfectant

(2) it is hygroscopic

(3) it is easily available

(4) It reduces transpiration


272. In a moss the sporophyte

(1) manufactures food for itself as well as for the gametophyte

(2) produces gametes that give rise to the gametophyte

(3) is partially parasitic on the gametophyte

(4) arises from a spore produced from the gametophyte


273. Match items in Column I with those in Column II:

Column I              -               Column II

(A) Peritrichous - (J) Ginkgo flagellation

(B) Living fossil - (K) Macrocystis

(C) Rhizophore  - (L) Escherichia coli

(D) Smallest - (M) Selaginella flowering plant

(E) Largest perennial - (N) Wolffia alga


(1) A-N; B-L; C-K; D-N; E-J;

(2) A-L; B-J; C-M; D-N; E-K;

(3) A-J; B-K; C-N; D-L; E-K

(4) A-K; B-J; C-L; D-M; E-N


274. Which one of the following is a living fossil?

(1) Saccharomyces

(2) Cycas

(3) Spirogyra

(4) Moss


275. Which of the following propagates through leaf- tip?

(1) Marchantia

(2) Walking fern

(3) Moss

(4) Sproux-leaf plant


276. In gymnosperms, the pollen chamber represents

(1) the microsporangium in which pollen grains develop

(2) a cavity in the ovule in which pollen grains are stored after pollination

(3) a cell in the pollen grain in which the sperms are formed.

(4) an opening in the megagametophyte through which the pollen tube approaches the egg


277. Flagellated male gametes are present in all the three of which one of the following sets?

(1) Riccia, Dryopteris and Cycas

(2) Zygnema, Saprolegnia and Hydrilla

(3) Anthoceros, Funaria and Spirogyra

(4) Fucus, Marsilea and Calotropis


278. If you are asked to classify the various algae into distinct groups, which of the following characters you should choose?

(1) chemical composition of the cell wall

(2) nature of stored food materials in the cell

(3) types of pigments present in the cell.

(4) structural organization of thallus


279. In the prothallus of a vascular cryptogam, the antherozoids and eggs mature a different times. As a result

(1) self-fertilization is prevented

(2) there is high degree of sterility

(3) there is no change in success rate of fertilization

(4) one can conclude that the plant is apomictic


280. Conifers differ from grasses in the

(1) formation of endosperm before fertilization

(2) lack of xylem tracheids

(3) production of seeds from ovules

(4) absence of pollen tubes

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