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Oxygen liberated during photosynthesis c...

Oxygen liberated during photosynthesis comes from

A

water

B

chlorophyll

C

carbon dioxide

D

glucose

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Verified by Experts

The correct Answer is:
A

Oxygen liberated during photosynthesis comes from water. Buring photosybthesis (i) Absorption of light energy by chlorophyll. (ii) conversion of light energy to chemical energy and spllitting of water molecules into hydrogen and oxygen. (iii) Reduction of carbon dioxide to carbohydrates.
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OSWAL PUBLICATION-LIFE PROCESSES- NCERT EXEMPLAR (MULTIPLE CHOICE QUESTIONS)
  1. During respiration exchange of gases take place in

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  3. What prevents backflow of blood inside the heart during contraction?

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  4. Single circulation ,i.e, blood flows through the heart only once durin...

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  5. In which of the following vertebrate group/groups,heart does not pump ...

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  6. Choose the correct statement that describes arteries.

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  7. Thr filtration units of kidneys are called

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  8. Oxygen liberated during photosynthesis comes from

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  9. The blood leaving the tissues becomes richer in

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  10. Which of the following is an incorrect statement?

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  11. The internal (cellular) energy reserve in autotrophs is

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  12. Which of the following equations is the summary of photosynthesis ?

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  13. Choose the event that does not occur in photosynthesis.

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  14. The opening and closing of the stomatal pore depends upon

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  15. Choose the forms in which most plants absorb nitrogen (i) Proteins ...

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  16. Which is the first enzyme to mix with food in the digestive tract ?

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  17. Which of the following statement(s) is (are) correct? (i) Pyruvate c...

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  18. Lack of oxygen in muscles often leads to cramps among cricketers. This...

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  19. Choose the correct path of urine in our body

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  20. During deficiency of oxygen in tissues of human beings , pyruvic acid ...

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