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

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Solution

This experiment demonstrates the requirement of carbon dioxide for photosynthesis. Potassium hydroxide (KOH) absorbs all the available carbon dioxide in the bell jar. As the jar is closed completely, no carbon dioxide is allowed from outside. In this situation, photosynthesis and starch or glucose production are inhibited.

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