DENDROLOGY

Detailed explanation-1: -Though it is called the “dark reaction", the Calvin cycle does not actually occur in the dark or during night time. This is because the process requires NADPH, which is short-lived and comes from the light-dependent reactions.

Detailed explanation-2: -True. The Calvin cycle does require sunlight indirectly in order to produce glucose. The light dependent reactions produce ATP and NADPH which are integral to the Calvin cycle.

Detailed explanation-3: -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.

Detailed explanation-4: -It takes six carbon molecules to make glucose, so plants have to go through the Calvin Cycle six times to make one glucose molecule. Once the plant has completed this cycle six times, the Calvin Cycle ends and begins again.