Why does the rate of photosynthesis decline a | vedclass

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(D) At very high light intensities,the rate of photosynthesis declines due to several factors:$1$. Photo-oxidation of chlorophyll: Excessive light ene

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(D) At very high light intensities,the rate of photosynthesis declines due to several factors:$1$. Photo-oxidation of chlorophyll: Excessive light energy can damage the chlorophyll molecules,leading to their breakdown.$2$. Increased respiration: High light intensity is often accompanied by high temperatures,which increase the rate of respiration,thereby consuming more of the produced carbohydrates.$3$. Decreased hydration: High light intensity and heat lead to increased transpiration,which can cause water stress and stomatal closure,limiting $CO_2$ availability.Therefore,all these factors contribute to the decline in the rate of photosynthesis.

Why does the rate of photosynthesis decline at very strong light intensities? It may be due to:

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