Question

Which photosynthetic process can occur at night?

A. The Calvin cycle
B. The reaction at photosystem II
C. The reaction at photosystem I
D. The formation of NADPH

Answer 1

The answer should be A. The Calvin Cycle.

Answer 2

Answer: The correct answer is -

A. The Calvin cycle.

Step-by-step explanation:

Calvin cycle ) is the second phase of photosynthesis (process by which food in the form of glucose is formed in green plants and algae) that is independent of light as it does not require sunlight to take place.

Thus, this phase is also called dark reaction.

During this reaction, the products of first stage (which is a light dependent phase) that are ATP and NADPH are used in the fixation of carbon dioxide so as to form glucose, which is a carbohydrate.