Question

2. Describe an activity to show that sunlight is essential for photosynthesis.​

Answer 1

Answer:

After a few hours, remove the leaf and decolourise it with alcohol. Now, test the presence of food (starch) by putting iodine solution on the leaf. ... So, it does not change its colour when treated with iodine solution. Thus, it can be concluded that the sunlight is essential for photosynthesis.

Explanation:

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Answer 2

Answer:

Experiment to show that sunlight is necessary for photosynthesis - definition. Take a plant with destarched leaf. Leaf is partially covered with black paper on which a design is cut. Expose this plant to sunlight for few hours and perform a starch test with iodine solution.

Explanation:

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