Question

the energy used in the calvin cycle for the reduction of carbon - dioxide molecules
○ atp made during light reactions
○ atp made in calvin reactions
○ atp made in the second stage of photosynthesis
○ co₂ absorbed during the last stage of photosynthesis

Explanation:

The Calvin - cycle uses ATP and NADPH produced during the light - reactions of photosynthesis for the reduction of carbon - dioxide to form carbohydrates. There is no ATP production in the Calvin cycle itself. The second stage of photosynthesis is the Calvin cycle which uses energy carriers from the first stage (light reactions). CO₂ is absorbed in the Calvin cycle but it is not an energy source for the reduction reactions.

Answer:

ATP made during light reactions