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All Physics Chemistry Botany Zoology

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Pyrenoid is

A. Storage bodies located in cytoplasm of chloropbyceae B. Storage bodies located in cytoplasm of Phaeophyceae C. Storage bodies located in chloroplast of chlorophyceae D. Storage bodies located in chloroplast of Phaeophyceae

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Explanation

Page number-32

3.1.1 Chlorophyceae

Plant Kingdom

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. Pyrenoid has

A. Protein+Starch B. Only Protein C. Only Starch D. Fats+ Starch

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Explanation

Page number-32

3.1.1 Chlorophyceae

Plant Kingdom

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Green algae usually have a rigid cell wall made of an inner layer of ….…. and outer layer of ………

A. Pectose, Cellulose B. Cellulose, Pectose C. Algin, carrageenan D. Carrageen, Algin

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Explanation

Page number-32

3.1.1 Chlorophyceae

Plant Kingdom

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Vegetative reproduction in chlorophyceae takes place by

A. Fragmentation+ spore formation B. Only spore formation C. Only Fragmentation D. Isogamous

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Explanation

Page number-32

3.1.1 Chlorophyceae

Plant Kingdom

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Asexual reproduction in chlorophyceae is by

A. Zoospore formation in Antheriodiophore B. Fragmentation C. Zoospore formation in Zoosporangia D. Both 1 and 2

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Explanation

Page number-32

3.1.1 Chlorophyceae

Plant Kingdom

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Zoospore formed during asexual reproduction in chlorophyceae are

A. Flagellated B. Non-flagellated C. Ciliated D. Non ciliated

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Explanation

Page number-32

3.1.1 Chlorophyceae

Plant Kingdom

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Sexual reproduction in chlorophyceae is of

A. Isogamous type B. Anisogamous type C. Oogamous type D. All of these

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Explanation

Page number-32

3.1.1 Chlorophyceae

Plant Kingdom

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In monocotyledonous seeds the outer covering of endosperm separates the embryo by a proteinous layer called as:

Aleurone

Scutellum

Testa

Tegmen

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Explanation

Aleurone layer is the outermost layer of the endosperm. Aleurone cells remain alive at maturity. It is a single layer of cells that secrete alpha amylase.

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Zygomorphic flower is not found in:

Cassia

Canna

Gulmohur

Bean

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Explanation

Flower in Canna is asymmetric.

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Some foliar roots also produce adventitious roots as in:

Oxalis

Coleus

Tapioca

Bryophyllum

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Explanation

These can be used in propagation of Bryophyllum.

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