Question

In this experiment, how does KOH affect the process of photosynthesis in the plant kept in a bell jar?

• A. Increases water intake and O₂ production
• B. Inhibits CO₂ intake by the plant
• C. Stops the food production in leaves
• D. Stops photolysis of water

Answer 1

Answer: (B), (C)

Stops the food production in leaves

KOH or potassium hydroxide is an absorbent of carbon dioxide. In the closed jar, the entire carbon dioxide is absorbed by KOH. Hence this does not allow production of food, as glucose is produced by the reduction of carbon dioxide during the process of photosynthesis.