During photosynthesis, oxygen is evolved from _____.

water

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sunlight

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proteins

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carbohydrates

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Solution

The correct option is A
water

During the process of photosynthesis, light from the sun is absorbed by chlorophyll in the leaf. This light energy is then used to produce ATP and to split water molecules to form oxygen and hydrogen. This splitting of the water molecules to form oxygen and hydrogen is referred to as photolysis. Thus, oxygen evolved during photosynthesis is from water.

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Similar questions

Which of the following statements are correct?

(i) Sunlight, carbon dioxide, chlorophyll and water are necessary for photosynthesis.
(ii) Oxygen is absorbed from the atmosphere during the process of photosynthesis.
(iii) Leaves carry out photosynthesis.
(iv) Proteins are made during photosynthesis.

Q. Who, among the following discovered that the oxygen is evolved from water during photosynthesis

Q. During photosynthesis, oxygen is evolved from

Q. The oxygen evolved during photosynthesis comes from

Q. Which of the following represents photosynthesis?
(a) water + oxygen----> carbon dioxide + carbohydrate
(b) carbon dioxide + water---->oxygen + carbohydrate
(c) carbohydrate + oxygen---> water + oxygen
(d) carbon dioxide + oxygen---> water + carbohydrate

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