NEET MCQs Practice on Plant Kingdom Class-XI Biology

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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 plant-kingdom [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:

NEET-2023 plant-kingdom [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:

NEET-2023 plant-kingdom [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?

NEET-2022 plant-kingdom [class-xi]

Ectocarpus – Fucoxanthin
Ulothrix – Mannitol
Porphyra – Floridian Starch
Volvox – Starch

Correct Option: B [ Ulothrix – Mannitol ]

Remark:

Hydrocolloid carrageen is obtained from:

NEET-2022 plant-kingdom [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:

NEET-2022 plant-kingdom [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?

NEET-2021 plant-kingdom [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:

NEET-2021 plant-kingdom [class-xi]

Homosorus
Heterosorus
Homosporous
Heterosporous

Correct Option: D [ Heterosporous ]

Remark:

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

NEET-2021 plant-kingdom [class-xi]

Ectocarpus
Gracilaria
Volvox
Ulothrix

Correct Option: A [ Ectocarpus ]

Remark:

Gemmae are present in:

NEET-2021 plant-kingdom [class-xi]

Mosses
Pteridophytes
Some Gymnosperms
Some Liverworts

Correct Option: D [ Some Liverworts ]

Remark:

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Plant Kingdom: Class-XI