Question

which enzyme catalyzes the calvin cycle? carbon reductase atp synthase rubisco

Explanation:

The key enzyme in the Calvin - cycle is ribulose - 1,5 - bisphosphate carboxylase/oxygenase, abbreviated as RuBisCo. It catalyzes the first major step of carbon fixation in the cycle, which is the addition of carbon dioxide to ribulose - 1,5 - bisphosphate. Carbon reductase is not the main enzyme for the Calvin cycle, and ATP synthase is involved in ATP production in processes like oxidative phosphorylation and not the main catalyst for the Calvin cycle.

Answer:

RuBisCo