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Algae aften float on surface of water du...

Algae aften float on surface of water during day but sink down during night due to

A

evolution and trapping of oxygen bubbles during day in their photosynthesis

B

becoming light as they consume most of their food in the night

C

warming action of sun during the day

D

release of absorbed air by warming of water

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The correct Answer is:
A
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TRUEMAN BIOLOGY-PHOTOSYNTHESIS IN HIGHER PLANTS-MULTIPLE CHOICE QUESTIONS
  1. One of the following pigments does not occur in chloroplast.

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  2. Which colour of light gives maximum absorption peak of chlorophyll a

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  3. Algae aften float on surface of water during day but sink down during ...

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  4. Thylakoids removed from chloroplasts were kept in illuminated culture ...

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  5. The evidence that during photosynthesis oxygen comes from water is

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  6. If the rate of translocation of food is slow, what will be the effect ...

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  7. Aerobic bacteria collect near illuminated phytoplankton due to

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  8. Maximum O(2) evolution occurs from

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  9. Photo-oxidation or photolysis of water (in photosynthesis) occurs in a...

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  10. Law of limiting factors in photosynthesis was given by:

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  11. The enzyme that catalyses carbon dioxide fixation in C(4) plants is

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  12. The first stable product in CAM//C(4) plants is

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  13. C(4) plants can absorbs CO(2) from

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  14. The first carbon fixation in C(4) pathway occurs in chloroplasts of

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  15. In C(4) plants, Calvin cycle operates in

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  16. Carotenoids

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  17. A chlorophyll molecule has the magnesium located in the

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  18. The common xanthophyll occuring in leaves is

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  19. Carotenes absorb light and transmit and hence are orange in colour

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  20. the empirical formula for chlorophyll a is

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