What is the limiting factor for photosynthesis at night?

Photosynthesis is the process by which plants, algae, and some bacteria convert light energy into chemical energy, using carbon dioxide and water. During the daytime, light is crucial for this process as it powers the reactions that convert carbon dioxide and water into glucose and oxygen. However, at night, the absence of light means that the light-dependent reactions of photosynthesis cannot occur, leading to the conclusion that light is the limiting factor for photosynthesis during this time.

At night, while temperature, carbon dioxide, and water levels still play roles in the overall health and functioning of a plant, the lack of light directly inhibits the ability to perform photosynthesis. Therefore, without light, even if other conditions were optimal, photosynthesis cannot be carried out.