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Plant Kingdom: Class-XI


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MCQs on Plant Kingdom: Class-XI for NEET Practice


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:

[class-xi ]

  • A is not correct but R is correct.
  • Both A and R are correct and R is the correct explanation of A.
  • Both A and R are correct but R is NOT the correct explanation of A.
  • A is correct but R is not correct.
    • Correct Option: B  [ Both A and R are correct and R is the correct explanation of A. ]

    Remark:

Identify the pair of heterosporous pteridophytes among the following:

[class-xi ]

  • Equisetum and Salvinia
  • Lycopodium and Selaginella
  • Selaginella and Salvinia
  • Psilolum and Salvinia
    • Correct Option: C  [ Selaginella and Salvinia ]

    Remark:

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:

[class-xi ]

  • A is false but R is true
  • Both A and R are true and R is the correct explanation of A
  • Both A and R are true but R is NOT the correct explanation of A
  • A is true but R is false
    • Correct Option: D  [ A is true but R is false ]

    Remark:

Which of the following is incorrectly matched?

[class-xi ]

  • Ectocarpus – Fucoxanthin
  • Ulothrix – Mannitol
  • Porphyra – Floridian Starch
  • Volvox – Starch
    • Correct Option: B  [ Ulothrix – Mannitol ]

    Remark:

Hydrocolloid carrageen is obtained from:

[class-xi ]

  • Chlorophyceae and Phaeophyceae
  • Phaeophyceae and Rhodophyceae
  • Rhodophyceae only
  • Phaeophyceae only
    • Correct Option: C  [ Rhodophyceae only ]

    Remark:

Match the plant with the kind of life cycle it exhibits:

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:

[class-xi ]

  • (A)-(IV), (B)-(I), (C)-(II), (D)-(III)
  • (A)-(II), (B)-(III), (C)-(IV), (D)-(I)
  • (A)-(III), (B)-(IV), (C)-(I), (D)-(II)
  • (A)-(II), (B)-(IV), (C)-(I), (D)-(III)
    • Correct Option: B  [ (A)-(II), (B)-(III), (C)-(IV), (D)-(I) ]

    Remark:

Which of the following algae produce Carrageen?

[class-xi ]

  • Green algae
  • Brown algae
  • Red algae
  • Blue-green algae
    • Correct Option: C  [ Red algae ]

    Remark:

Genera like Selaginella and Salvinia produce two kinds of spores. Such plants are known as:

[class-xi ]

  • Homosorus
  • Heterosorus
  • Homosporous
  • Heterosporous
    • Correct Option: D  [ Heterosporous ]

    Remark:

Which of the following algae contains mannitol as reserve food material?

[class-xi ]

  • Ectocarpus
  • Gracilaria
  • Volvox
  • Ulothrix
    • Correct Option: A  [ Ectocarpus ]

    Remark:

Gemmae are present in:

[class-xi ]

  • Mosses
  • Pteridophytes
  • Some Gymnosperms
  • Some Liverworts
    • Correct Option: D  [ Some Liverworts ]

    Remark:
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NEET Biology Previous Year Questions (PYQs)