Which of the following molecules is the source of oxygen that's released during photosynthesis?

Carbon dioxide

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Water

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Glucose

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Chlorophyll

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Solution

The correct option is B
Water

Oxygen is released due to the photolysis of water which happens in photosystem II. Sunlight helps in splitting up of the water molecules, thereby releasing oxygen.

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The oxygen that is released as O $_{2}$ during photosynthesis came from _____________ molecules.

Question 23
Oxygen liberated during photosynthesis comes from

(a) water
(b) chlorophyll
(c) carbon dioxide
(d) glucose

What is needed for photosynthesis in which carbon dioxide and water react in the presence of chlorophyll to produce glucose and oxygen?

Question 23
Oxygen liberated during photosynthesis comes from

(a) water
(b) chlorophyll
(c) carbon dioxide
(d) glucose

Which option correctly fills up the blanks in the following equation?

(i)+WaterSunlight+(ii)−−−−−−−−→Glucose+(iii)

(i) Oxygen (ii) Starch (iii) Chlorophyll

(i) Carbon dioxide (ii) Chlorophyll (iii) oxygen

(i) oxygen (ii) Chlorophyll (iii) Carbon dioxide

(i) Carbon dioxide (ii) Chlorophyll (iii) oxygen

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