Which one of the following would NOT limit photosynthesis?

Explanation

The correct answer is oxygen. While oxygen is involved in the process of photorespiration, it is not a primary factor that limits photosynthesis. In photosynthesis, the availability of carbon dioxide and light is crucial, as they are required for the light-dependent and light-independent reactions. Chlorophyll is also essential for capturing light energy. Therefore, a lack of any of these three components can directly limit the rate of photosynthesis, unlike oxygen, which is not a direct limiting reactant.