Question

Why is the Calvin cycle considered a dark reaction?

Answer 1

The Calvin cycle is a dark reactionbecause it does not need sunlight. Although it can happen during the day, this process does not require energy from the sun to work.

Answer 2

The Calvin cycle is a dark reaction because it does not need sunlight. Although it can happen during the day, this process does not require energy from the sun to work. ... During the Calvin cycle, the plant captures carbon dioxide, which reacts with the sugar, ribulose bisphosphate -- RuBP -- to make a six-carbon sugar