An experiment could involve placing identical plants in two separate environments: one exposed to sunlight and the other kept in darkness. By measuring the rate of oxygen production or glucose accumulation in each plant, we can determine whether sunlight is essential for photosynthesis.
What experiment could be designed to demonstrate the necessity of sunlight for photosynthesis?
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To demonstrate the necessity of sunlight for photosynthesis, an experiment using potted plants can be designed. Two groups of identical plants should be selected. Place one group in a well-lit area exposed to sunlight and another group in a completely dark environment. Both groups receive the same amount of water and carbon dioxide. After a period, measure and compare the growth, oxygen production, or starch content in leaves between the two groups. The plants exposed to sunlight should exhibit greater growth and photosynthetic activity, emphasizing the essential role of sunlight in driving the process of photosynthesis.