If an experiment is designed to demonstrate that sunlight is essential for photosynthesis, which of

Q: What is the correct answer for CBSE10?

The correct answer is B. To prove that sunlight is essential, one must compare a plant exposed to light with an identical plant deprived of light. The control setup would involve keeping the plant in total darkness. If starch is present in the light-exposed plant but absent in the dark-kept plant (after destarching), it confirms the necessity of light.

Q: If an experiment is designed to demonstrate that sunlight is essential for photosynthesis, which of the following conditions would be crucial for the control setup?

The correct answer is B. To prove that sunlight is essential, one must compare a plant exposed to light with an identical plant deprived of light. The control setup would involve keeping the plant in total darkness. If starch is present in the light-exposed plant but absent in the dark-kept plant (after destarching), it confirms the necessity of light.

Q: What are the options for this CBSE10 question?

A. Exposing the plant to sunlight but covering a part of the leaf. · B. Keeping the plant in total darkness. · C. Providing carbon dioxide but no water. · D. Using a variegated leaf.

Question

If an experiment is designed to demonstrate that sunlight is essential for photosynthesis, which of the following conditions would be crucial for the control setup?

FirstInTest · Accepted Answer

To prove that sunlight is essential, one must compare a plant exposed to light with an identical plant deprived of light. The control setup would involve keeping the plant in total darkness. If starch is present in the light-exposed plant but absent in the dark-kept plant (after destarching), it confirms the necessity of light.

Answer

Exposing the plant to sunlight but covering a part of the leaf.

Answer

Keeping the plant in total darkness.

Answer

Providing carbon dioxide but no water.

Answer

Using a variegated leaf.

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