Question

Why should we destarch a leaf before conducting an experiment to show that light
is necessary for photosynthesis?​

Answer 1

Answer:

Starch formation in plants is a by product of photosynthesis. Therefore, when photosynthesis investigation is conducted the plant must be de starched in order to have a metric to determine if photosynthesis took place. The most common method of destarching a plant involves placing it in a dark setting for 24to 48 hours

HOPE YOU UNDERSTOOD THE ANSWER AND FOLLOW ME AND MARK AS BRAINLIST ANSWER.....

Answer 2

Answer:

Check the explanation below

Explanation:

Ans- Starch is produced by the process of photosynthesis in the presence of light. To prove sunlight is necessary for photosynthesis, the formation of starch is an indicator. Removing the starch which is already present in the leaf helps us to understand that formation of starch takes place in presence of light and it is necessary for photosynthesis.