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

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

(2) there is high degree of sterility

(3) one can conclude that the plant is apomictic

(4) self fertilization is prevented

Subtopic:  General Accounts of Gymnosperms: II | Gymnosperms |
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Which one of the following statements is wrong?

(1) Algin and carrageenan are products of algae

(2) Agar-agar is obtained from Gelidium and Gracilaria

(3) Chlorella and Spirulina are used as space food

(4) Mannitol is stored food in Rhodophyceae

Subtopic:  Algae |
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Male gametes are flagellated in

1. Polysiphonia

2. Anabaena

3. Ectocarpus

4. Spirogyra

Subtopic:  Algae |
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Please attempt this question first.

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The most primitive among the living vascular plants are the

(1) ferns

(2) brown algae

(3) mosses

(4) cycads

Subtopic:  Bryophytes |
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NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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Non flowering plants are included under

(1) cryptogamae

(2) phanerogamae

(3) angiosperms

(4) Both a and b

Subtopic:  Clssification System: II | Classification System |
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NEET 2022 - Target Batch - Aryan Raj Singh

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Chlorophyll present in red algae is

(1) a, d

(2) a, b

(3) a, c

(4) b, c

Subtopic:  Rhodophyceae: Red Algae and Importance of Algae |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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Shape of chloroplast present in Ulothrix is

(1) cup shaped

(2) girdle shaped

(3) star shaped

(4) diffused type

Subtopic:  Algae |
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NEET 2022 - Target Batch - Aryan Raj Singh

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This plant is used as a packing material and also forms an excellent fodder for feeding cattle.

(1) Medicago

(2) Pongamia

(3) Cratolaria

(4) All of these

Subtopic:  General Account of Angiosperms |
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NEET 2022 - Target Batch - Aryan Raj Singh

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The green alga rich in proteins used as food supplements even by space travelers is

(1) Chlorella

(2) Scendesmus

(3) Porphyra

(4) Spirulina

Subtopic:  Algae |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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Roots of higher plants show symbiosis with mycorrhiizas for obtaining

(1) sulphates

(2) nitrogen

(3) phosphates

(4) All of these

Subtopic:  General Accounts of Gymnosperms: II | Gymnosperms |
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NEET 2022 - Target Batch - Aryan Raj Singh

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