Growth and Reproduction in Plants and Animals NDA Questions

NDA BIOLOGY

Growth and Reproduction in Plants and Animals MCQ Questions


1.
In algae, fusion between one large non-motile female gamete and a smaller motile male gamete is termed as:
A.
Conjugation
B.
Anisogamy
C.
Oogamy
D.
Isogamy
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ANSWER :
C. Oogamy
2.
Which of the following algae is used as a food supplement even by space travellers due to its high protein content?
A.
Chlorella
B.
Gracilaria
C.
Sargassum
D.
Gelidium
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ANSWER :
A. Chlorella
3.
The commercial product 'algin' is obtained from which class of algae?
A.
Rhodophyceae
B.
Phaeophyceae
C.
Chlorophyceae
D.
Cyanophyceae
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ANSWER :
B. Phaeophyceae
4.
Floridean starch found in red algae is structurally similar to:
A.
Amylose and cellulose
B.
Amylopectin and glycogen
C.
Cellulose and glycogen
D.
Laminarin and mannitol
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ANSWER :
B. Amylopectin and glycogen
5.
In Phaeophyceae, the food is stored in the form of:
A.
Laminarin or mannitol
B.
Starch
C.
Glycogen
D.
Floridean starch
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ANSWER :
A. Laminarin or mannitol
6.
The pigment responsible for the colour of red algae is:
A.
Chlorophyll b
B.
Fucoxanthin
C.
Xanthophyll
D.
r-phycoerythrin
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ANSWER :
D. r-phycoerythrin