Plant Kingdom
29 NEET Biology previous year questions on Plant Kingdom — options free on every question; 3 include the answer & explanation free, the rest unlock with PYQ Pass.
In which one of the following, the ovules are not enclosed by an ovary wall and remain exposed?
[NEET 2026]
Pinus
The condition where ovules are not enclosed by an ovary wall (i.e., exposed ovules) is a characteristic feature of gymnosperms.
A. Selaginella – a pteridophyte; does not have seeds or ovules
B. Funaria – a bryophyte; no ovules
C. Pinus – a gymnosperm; ovules are naked (not enclosed by ovary)
D. Wolffia – an angiosperm; ovules enclosed within ovary
Correct answer: Option C
Read the following statements and choose the set of correct statements: In the members of Phaeophyceae,
A. Asexual reproduction occurs usually by biflagellate zoospores.
B. Sexual reproduction is by oogamous method only.
C. Stored food is in the form of carbohydrates which is either mannitol or laminarin.
D. The major pigments found are chlorophyll a, c and carotenoids and xanthophyll.
E. Vegetative cells have a cellulosic wall, usually covered on the outside by gelatinous coating of algin.
Choose the correct answer from the options given below:
[NEET 2024]
A, C, D and E only
- A. Asexual reproduction in Phaeophyceae occurs usually by biflagellate zoospores.
- C. Stored food in Phaeophyceae is in the form of complex carbohydrates, either as mannitol or laminarin.
- D. Major pigments found are chlorophyll a, c, carotenoids, and xanthophyll.
- E. Vegetative cells have a cellulosic wall, usually covered on the outside by a gelatinous coating of algin.
Statement B is incorrect because sexual reproduction in Phaeophyceae can be isogamous, anisogamous, or oogamous, not exclusively oogamous.
Which of the following is the correct match?
[Re-NEET 2024]
Gymnosperms: Cedrus, Pinus, Sequoia
A. Gymnosperms: Cedrus, Pinus, Sequoia
→ All three (Cedrus, Pinus, Sequoia) are gymnosperms (conifers).
B. Angiosperms: Wolffia, Eucalyptus, Sequoia
→ Sequoia is a gymnosperm, not an angiosperm.
C. Bryophytes: Polytrichum, Polysiphonia, Sphagnum
→ Polysiphonia is an alga (Rhodophyceae), not a bryophyte.
D. Pteridophytes: Equisetum, Ginkgo, Adiantum
→ Ginkgo is a gymnosperm, not a pteridophyte.
Correct answer: A — Gymnosperms: Cedrus, Pinus, Sequoia
In bryophytes, the gemmae help in which one of the following?
[NEET 2025]
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The correct sequence of events in the life cycle of bryophytes is
A. Fusion of antherozoid with egg.
B. Attachment of gametophyte to substratum.
C. Reduction division to produce haploid spores.
D. Formation of sporophyte.
E. Release of antherozoids into water.
Choose the correct answer from the options given below:
[NEET 2025]
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Given below are the stages in the life cycle of pteridophytes. Arrange the following stages in the correct sequence.
A. Prothallus stage
B. Meiosis in spore mother cells
C. Fertilisation
D. Formation of archegonia and antheridia in gametophyte.
E. Transfer of antherozoids to the archegonia in presence of water.
Choose the correct answer from the options given below :
[NEET 2025]
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Sphenopsida class belongs to _______.
[Re-NEET 2026]
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Read the following statements and choose the set of correct statements: In the members of Phaeophyceae,
A. Asexual reproduction occurs usually by biflagellate zoospores.
B. Sexual reproduction is by oogamous method only.
C. Stored food is in the form of carbohydrates which is either mannitol or laminarin.
D. The major pigments found are chlorophyll a, c and carotenoids and xanthophyll.
E. Vegetative cells have a cellulosic wall, usually covered on the outside by gelatinous coating of algin.
Choose the correct answer from the options given below:
[NEET 2024]
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Given below are two statements:
Statement I: In gymnosperms, the male and female gametophytes remain within the sporangia.
Statement II: In gymnosperms, seeds are not covered.
In the light of the above statements, choose the most appropriate answer from the options given below:
[Re-NEET 2026]
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Which of the following is the correct match?
[Re-NEET 2024]
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Which one of the following is the characteristic feature of gymnosperms?
[NEET 2025]
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Which of the following statements is true?
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Which of the following algae produce Carrageen?
[NEET 2021]
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Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R:
Assertion A: In gymnosperms the pollen grains are released from the microsporangium and carried by air currents.
Reason R: Air currents carry the pollen grains to the mouth of the archegonia where the male gametes are discharged and pollen tube is not formed.
In the light of the above statements, choose the correct answer from the options given below:
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Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R: In the light of the above statements, choose the most appropriate answer from the options given below:
Assertion A: The first stage of gametophyte in the life cycle of moss is protonema stage.
Reason R: Protonema develops directly from spores produced in capsule.
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Strobili or cones are found in
[NEET 2020]
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Gemmae are present in:
[NEET 2021]
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Floridean starch has structure similar to
[NEET 2020]
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Which of the following pairs is of unicellular algae?
[NEET 2020]
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Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R :
Assertion A : The first stage of gametophyte in the life cycle of moss is protonema stage.
Reason R : Protonema develops directly from spores produced in capsule.
In the light of the above statements, choose the most appropriate answer from the options given below:
[NEET 2023]
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Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : In gymnosperms the pollen grains are released from the microsporangium and carried by air currents.
Reason R : Air currents carry the pollen grains to the mouth of the archegonia where the male gametes are discharged and pollen tube is not formed.
In the light of the above statements, choose the correct answer from the options given below:
[NEET 2023]
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Which classes of algae possess pigment fucoxanthin and pigment phycoerythrin, respectively?
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Phycoerythrin is the major pigment in
[Re-NEET 2020]
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Male and female gametophytes do not have an independent free living existence in:
[Re-NEET 2020]
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Which of the following statements is incorrect about gymnosperms?
[Re-NEET 2020]
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Genera like Selaginella and Salvinia produce two kinds of spores. Such plants are known as
[NEET 2021]
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Which of the following algae contains mannitol as reserve food material?
[NEET 2021]
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Identify the pair of heterosporous pteridophytes among the following :
[NEET 2023]
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Strobili or cones are found in
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