Place potted plants of the same species in two groups, ensuring they receive identical amounts of water and nutrients. One group should be placed in a well-lit area where they can receive sunlight, while the other group should be placed in a dark room or covered with a light-blocking material.
How would you set up the experiment to test the importance of sunlight for photosynthesis?
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To test the importance of sunlight for photosynthesis, set up two groups of identical potted plants. Place one group in a well-lit area exposed to natural sunlight, and the other group in a completely dark environment. Ensure both groups receive equal amounts of water and carbon dioxide. After a defined period, measure and compare factors such as plant growth, oxygen production, or starch accumulation in leaves between the two groups. The group exposed to sunlight should demonstrate higher levels of these factors, providing evidence of sunlight’s crucial role in driving photosynthesis. This controlled experiment highlights the dependence of photosynthesis on sunlight.