If stomata of leaves remain closed for a long time what may happen to photosynthesis?
Answer and explanation
Correct answer: Rate may decrease due to lack of carbon dioxide
Photosynthesis requires carbon dioxide as a raw material for producing carbohydrates. Stomata provide the main pathway by which atmospheric carbon dioxide enters the leaf. If they remain closed, carbon-dioxide diffusion into the leaf decreases; after the available internal supply is used, photosynthetic rate and food formation may fall. Therefore A is correct. Oxygen does not become food, xylem transports water, and villi belong to the intestine.
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What is the correct answer to this question?
Rate may decrease due to lack of carbon dioxide
Why is this the correct answer?
Photosynthesis requires carbon dioxide as a raw material for producing carbohydrates. Stomata provide the main pathway by which atmospheric carbon dioxide enters the leaf. If they remain closed, carbon-dioxide diffusion into the leaf decreases; after the available internal supply is used, photosynthetic rate and food formation may fall. Therefore A is correct. Oxygen does not become food, xylem transports water, and villi belong to the intestine.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Life Processes.
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