Question

Describe an experiment to prove that
carbon di oxide is essential for the
process of photosynthesis.​

Answer 1

Answer:

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Explanation:

Experiment to prove the necessity of carbon dioxide in photosynthesis - definition. Insert a part of the leaf of a destarched plant into a conical flask containing potassium hydroxide. ... Leave the plant sunlight. After few hours, perform a starch test to this and another leaf of the same plant.

Answer 2

Answer:To prove the necessity of carbon dioxide in photosynthesis following steps need to do

Insert a part of the leaf of a destarched plant into a conical flask containing potassium hydroxide.

Potassium hydroxide solution absorbs the carbon dioxide gas from the air present in the glass bottle.

Leave the plant sunlight.

After few hours, perform a starch test to this and another leaf of the same plant.

Observation-

Leaf exposed to the atmosphere are bluish black.

Leaf exposed to KOH does not change to blue-black colour

Result- Starch is present in the green part of the leaf.

Conclusion- Presence of starch proves that chlorophyll is necessary for photosynthesis as it traps sunlight.

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