Which of the following statement is correct? [2018]
(a) Ovules are not enclosed by ovary wall in gymnosperms.
(b) Selaginella is heterosporous, while Salvinia is homosporous.
(c) Stems are usually unbranched in both Cycas and Cedrus.
(d) Horsetails are gymnosperms.
2. Winged pollen grains are present in ________. [2018]
(a) Mustard (b) Cycas (c) Pinus (d) Mango
3. Which one is incorrectly matched? [2018]
(a) Uniflagellate gametes – Polysiphonia (b) Biflagellate zoospores – Brown algae
(c) Unicellular organism – Chlorella (d) Gemma cups – Marchantia
4. Double fertilisation is exhibited by _________. [2017]
(a) algae (b) fungi (c) angiosperms (d) gymnosperms
5. Select the mismatch. [2017]
(a) Cycas – Dioecious (b) Salvinia – Heterosporous
(c) Equisetum – Homosporous (d) Pinus – Dioecious
6. Life cycle of Ectocarpusand Fucus respectively are: [2017]
(a) Diplontic, Haplodiplontic (b) Haplodiplontic, Diplontic
(c) Haplodiplontic, Haplontic (d) Haplontic, Diplontic
7. Zygotic meiosis is characteristic of _________. [2017]
(a) Fucus (b) Funaria (c) Chlamydomonas (d) Marchantia
8. An example of colonial alga is __________. [2017]
(a) Volvox (b) Ulothrix (c) Spirogyra (d) Chlorella
9. Select the correct statement. [2016]
(a) Gymnosperms are both homosporous and heterosporous.
(b) Salvinia, Ginkgo and Pinus all are gymnosperms.
(c) Sequoia is one of the tallest trees.
(d) The leaves of gymnosperms are not well adapted to extremes of climate.
10. In bryophytes and pteridophytes, transport of male gametes requires __________. [2016]
(a) Wind (b) Insects (c) Birds (d) Water
11. In angiosperms, microsporogenesis and megasporogenesis [2015]
(a) form gametes without further divisions. (b) involve meiosis.
(c) occur in ovule. (d) occur in anther.
12. Male gametophyte in angiosperms produces [2015]
(a) single sperm and vegetative cell. (b) single sperm and two vegetative cells.
(c) three sperms. (d) two sperms and a vegetative cell.
13. Read the following five statements (A to E) and select the option with all correct statements. [2015]
(A) Mosses and lichens are the first organisms to colonise a bare rock.
(B) Selaginella is a homosporous pteridophyte.
(C) Coralloid roots in Cycas have VAM.
(D) Main plant body in bryophytes is gametophytic, whereas in pteridophytes it is sporophytic.
(E) In gymnosperms, male and female gametophytes are present within sporangia located on sporophyte.
(a) (B), (C) and (D) (b) (A), (D) and (E) (c) (B), (C) and (E) (d) (A), (C) and (D)
14. In which of the following gametophyte is not independent free living? [2015]
(a) Marchantia (b) Pteris (c) Pinus (d) Funaria
15. Which one is incorrect statement? [2015]
(a) Mucor has biflagellate zoospores.
(b) Haploid endosperm is typical feature of gymnosperms.
(c) Brown algae have chlorophyll a and c and fucoxanthin.
(d) Archaegonia are found in bryophyta, pteridophyta and gymnosperms.
16. Which one of the following statements is incorrect? [2015]
(a) Agar – agar is obtained from Gelidiumand Gracilaria.
(b) Chlorella and Spirulina are used as space food.
(c) Mannitol is stored food in rhodophyceae.
(d) Algin and carrageenan are products of algae.
17. Male gametes are flagellated in _________. [2015]
(a) Anabaena (b) Ectocarpus (c) Spirogyra (d) Polysiphonia
18. Which of the following is responsible for peat formation? [2014]
(a) Marchanita (b) Riccia (c) Funaria (d) Sphagnum
19. Which one of the following is incorrect about Chara? [2014]
(a) Upper oogonium and lower round antheridium.
(b) Globule and nucule present on the same plant.
(c) Upper antheridium and lower oogonium.
(d) Globule is male reproductive structure.
20. An alga which can be employed as food for human being is __________. [2014]
(a) Ulothrix (b) Chlorella (c) Spirogyra (d) Polysiphonia
21. Which one of the following shows isogamy with non-flagellated gametes? [2014]
(a) Sargassum (b) Ectocarpus (c) Ulothrix (d) Spirogyra
22. From evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in (NEET-2019)
(1) Liverworts (2) Mosses (3) Pteridophytes (4) Gymnosperms
23. Phloem in gymnosperms lacks : (NEET-2019)
(1) Albuminous cells and sieve cells (2) Sieve tubes only
(3) Companion cells only (4) Both sieve tubes and companion cells
24. Phycoerythrin is the major pigment in : (NEET-2020 COVID)
(1) Red algae (2) Blue green algae (3) Green algae (4) Brown algae
25. Which of the following statements is incorrect about gymnosperms? (NEET-2020 COVID)
(1) They are heterosporous
(2) Male and female gametophytes are free living
(3) Most of them have narrow leaves with thick cuticle
(4) Their seeds are not covered
26. Male and female gametophytes do not have an independent free living existence in
(NEET-2020 COVID)
(1) Pteridophytes (2) Algae (3) Angiosperms (4) Bryophytes
27. Floridean starch has structure similar to : (NEET-2020)
1) Laminarin and cellulose 2) Starch and cellulose
3) Amylopectin and glycogen 4) Mannitol and algin
28. Strobili or cones are found in : (NEET-2020)
1) Equisetum 2) Salvinia 3) Pteris 4) Marchantia
29. Which of the following pairs is of unicellular algae? (NEET-2020)
1) Chlorella and Spirulina 2) Laminaria and Sargassum
3) Gelidium and Gracilaria 4) Anabaena and Volvox
30. Genera like Selaginella and Salvinia produce two kinds of spores. Such plants are known as
[NEET-2021]
(1) Heterosorus (2) Homosporous (3) Heterosporous (4) Homosorus
31. Gemmae are present in [NEET-2021]
1) Pteridophytes 2) Some Gymnosperms 3) Some Liverworts 4) Mosses
32. Which of the following plants in monoecius ? [NEET-2021]
1) Chara 2) Marchantia polymorpha 3) Cycas circinalis 4) Carica papaya
33. Which of the following algae contains mannitol as reserve food material? [NEET-2021]
1) Gracilaria 2. Volvox 3) Ulothrix 4) Ectocarpus
34. Which of the following algae produce carrageen? [NEET-2021]
1) Brown algae 2) Red algae 3) Blue-green algae 4) Green algae
35. Which of the following is incorrectly matched? [NEET-2022]
1) Ectocarpus – Fucoxanthin 2) Ulothrix – Mannitol
3) Porphyra – Floridian starch 4) Volvox – Starch
36. Hydrocolloid carrageen is obtained from [NEET-2022]
1) Chlorophyceae and Phaeophyceae
2) Phaeophyceae and Rhodophyceae
3) Rhodophyceae only
4) Phaeophyceae only
37. Match the plant with the kind of life cycle it exhibits: [NEET-2022]
List – I List – II
a) Spirogyra i) Dominant diploid sporophyte vascular
plant, with highly reduced male or female
gametophyte
b) Fern ii) Dominant haploid free-living gametophyte
c) Funaria iii) Dominant diploid sporophyte alternating
with reduced gametophyte called prothallus
d) Cycas iv) Dominant haploid leafy gametophyte
alternating with partially dependent
multicellular sporophyte.
Choose the correct answer from the options given below:
1) (a) – (iv), (b) – (i), (c)- (ii), (d) – (iii)
2) (a) – (ii), (b) – (iii), (c)- (iv), (d) – (i)
3) (a) – (iii), (b) – (iv), (c)- (i), (d) – (ii)
4) (a) – (ii), (b) – (iv), (c)- (i), (d) – (iii)
NEET PREVIOUS YEARS QUESTIONS-ANSWERS
1 (a) 2 (c) 3 (a) 4 (c) 5 (d) 6 (b) 7 (c) 8 (a) 9 (c) 10 (d)
11 (b) 12 (d) 13 (b) 14 (c) 15 (a) 16 (c) 17 (b) 18 (d) 19 (c) 20 (b)
21 (d) 22 (3) 23 (4) 24 (1) 25 (2) 26 (3) 27 (3) 28 (1) 29 (1) 30 (3)
31 (3) 32 (1) 33 (4) 34 (2) 35 (2) 36 (3) 37 (2)
NEET PREVIOUS YEARS QUESTIONS-EXPLANATIONS
1. (a) The gymnosperms are a group of seed-producing plants. The name is based on the unenclosed conditionof their seeds (called ovules in their unfertilised state).
2. (c) Winged pollen grains are present in Pinus. Each pollen grain has two wing-like structures which enables it tofloat in air, as an adaptation for dispersal by the wind.
3. (a) Polysiphoniais a genus of red algae, where asexual spores and gametes are non-motile or non-flagellated.
4. (c) Double fertilisation is a unique feature exhibited only by angiosperms. It involves both syngamy and triplefusion.
5. (d) Pinus is a monoecious plant comprising of both male and female cones on same plant.
6. (b) Ectocarpusexhibits haplodiplontic life cycle while Fucus has diplontic life cycle.
7. (c) Chlamydomonas has haplontic life cycle hence, shows zygotic meiosis.
8. (a) Volvox is motile colonial fresh water green alga. It formsspherical colonies.
9. (c) Sequoia semeperviransis one of the tallest trees.
10. (d) Bryophytes neither have pollen nor flowers and rely on water to carry the male gametes (sperm) to
the femalegametes (eggs). The antherozoids (male gametes of pteridophytes) are armed with hair-like or whip-like ciliaor flagellae and are able to swim through water; they do not travel great distances and are only released when free water is available.
11. (b) In meiosis, the number of chromosomes are reduced by half producing haploid daughter cells.
In bothprocesses microsporogenesis and megasporogenesis, the microspore mother cell and the megaspore mothercell undergoes meiosis to produce haploid microsporeand megaspore respectively.
12. (d) Two sperms and a vegetative cell are produced by male gametophyte in angiosperms.
Malegametophyte orpollen grain contain one generative cell, which further divides mitotically to form two sperms. Whereas, avegetative produces an elongated pollen tube to deliver the sperm in embryo sac.
13. (b) Selaginella is a heterosporus pteridophyte containing micro & megaspores. In Cycas, corolloid root
has thecyanobacteria – Anabaena.
14. (c) Pinus belongs to gymnosperms in which male and female gametophytes do not have an independent
Freeliving existance. They remain within the sporangia which are of two types — microsporangia andmegasporangia.
15. (a) The spores are non motile in Mucor.
16. (c) Mannitol or laminarin is the stored food in phaeophyceae(brown algae).
17. (b) Male gametes are flagellated in Ectocarpus(phaeophyceae). They possess heterokont,
lateralflagella.
18. (d) Sphagnum, a moss, provides peat that has long been used as fuel. It has the capacity to retain water
for longperiods and as such used to cover the plant roots during transportation.
19. (c) Chara is a green alga found attached to bottoms of shallow water of ponds, pools and lakes. Male sex
organ is called antheridium. Female sex organ is calledoogonium. Oogonium is borne at the top of the fourcelled filament.
20. (b) Chlorella and Spirullinaare unicellular algae, rich in proteins and are used as food supplements by
Spacetravellers.
21. (d) In Spirogyra, sexual reproduction occurs through conjugation. Gametes are non-flagellated
Morphologically similar but physiologically different (isogamy with physiological anisogamy).
27. Floridean starch is reserve food material of red algae, it is similar to the structure of amylopectin and glycogen
28. Equisetum is pteridophyte in which sporophylls are organisedin from of strobili or cones
29. Chlorella and Spirulina are algae used as single cell proteins
30. Plants like Selaginella and Salvinia produce two kinds of spore i.e., microspores and macrospores.
They are known as heterosporous.Most of the pteridophytes produce single type of spores and are called homosporousSorus are brownish or yellowish cluster of sporeproducing structures located on the lower surface offern leaves.
31. Some Liverworts
32. Chara
33. Ectocarpus is pheophyceae member which stores Mannitol
34. Carrageen is present in the cell walls of red algae
35. Ulothrix – is green alga and stored food is starch
36. Rhodophyceae
37. Spirogyra is a green algae, haplontic life cycle.
Fern is a pteridophyte – Life cycle shows dominant diploid sporophyte, alternating with reduced free living gametophytic stage. So its Haplo-diplontic life cycle
Funaria – belongs to Bryophyta. Its a moss plant. Exhibits haplodiplontic lifecycle. The free living haploid gametophyte bears the sporophytic plant body.
Cycas – Gymnosperms.
Gymnosperms exhibit dominant diploid saprophytic plant body, with highly reduced male/female gametophyte.