Question

Oxygen is a waste product of photosynthesis.

• A. True
• B. False

Answer 1

The correct option is A

True

True

Some of the oxygen produced in the process of photosynthesis is used in respiration by the leaf cells but the major portion of it is not required and it diffuses out into the atmosphere through the stomata. Therefore, it may be called a waste product of photosynthesis. But in a sense, even this oxygen is not a waste, because all organisms (including all animals, plants and even the same plant which releases it during the daytime requires it at night) need this oxygen for respiration.