Question

Sunlight is necessary for photosynthesis explain an experiment to prove it

Answer 1

Put a black tape on a part of the leaf of a potted plant which wasn't kept in sunlight for some days. Place this taped leaf in the sunlight. After a while do starch test using Iodine. we will find no violet color on the taped part, indicating the absence of photosynthesis in that region. It is showing that sunlight is indispensable for plants to perform photosynthesis....

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Answer 2

The most important factor for photosynthesis is light. The rate of photosynthesis depends on the quantity and quality of light. The chlorophyll molecule in green leaves absorb light, get excited and emit electrons. The emitted electrons are used in the production of adenosine triphosphate (ATP). Finally the solar energy is converted into chemical energy and stored in the glucose produced.

The rate of photosynthesis is the maximum in the presence of red and blue lights