Question

How CO2 is necessary for photosynthesis?
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Answer 1

Explanation:

During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen. These sugar molecules are the basis for more complex molecules made by the photosynthetic cell, such as glucose.

Answer 2

Explanation:

The portion on leaf which was enclosed within the bottle will not show the presence of starch . Conclusion : This shows that CO2 is essential for photosynthesis, because the portion inside the bottle did not get the CO2 as it was absorbed by KOH solution. Thus CO2 is necessary for photosynthesis.