Why does the rate of photosynthesis increase when the light intensity increases. please don't say "because there is more light available to drive the reactions of photosynthesis. "

As you rise from low light intensity to higher light intensity, the rate of photosynthesis will increase because there is more light available to drive the reactions of photosynthesis. ... A limiting factor could be the amount of chlorophyll molecules that are absorbing the light.

If you continue to increase the intensity of light that a plant receives, what happens? The rate of photosynthesis increases with light intensity. ... The rate of photosynthesis increases and then levels off.. As the light intensity increases the rate of photosynthesis follows (point B on the graph). This means more carbon dioxide is being absorbed by the plant for photosynthesis. So this means more carbon dioxide uptake occurs. The graph shows this increase in carbon dioxide uptake.

Explanation:

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