Question

Which factor is not limiting in normal conditions for photosynthesis?

• A. Light intensity
• B. CO${}_2$
• C. Water
• D. Chlorophyll

Answer 1

The correct option is D Chlorophyll

According to limiting factors of photosynthesis, chlorophyll is not counted in normal conditions. It is because chlorophyll is a pigment, which is present in plants and not an external factor. It is involved in the trapping of light for the light dependant reaction of photosynthesis. Chlorophyll pigments do not determine the rate of photosynthesis.

So, the correct answer is option D.