Question

Where do the enzymatic reactions of the calvin cycle take place?

Answer 1

Answer: The stroma

Explanation:

The Calvin cycle consists of a series of biochemical reactions that take place in photosynthetic organisms, such as plants. CO2 binds to an organic molecule, before its reduction by the action of NADPH, in a cyclic process that leads to glucose synthesis.

In plants, carbon dioxide enters the leaves through pores called stomas and diffuses into the chloroplast, the site where the reactions of photosyntesis occur, and where sugar is synthesized.

The reactions of the Calvin cycle are responsible for the fixation of CO2 by incorporating it into the individual's organic matter in the form of glucose through the enzyme RuBisCo. This process is stimulated by the ATP and NADPH that come from the luminous reactions, and depends on them.  However, these reactions are also called light-independent reactions, because light does not cause them directly.

Unlike light-dependent reactions, which occur in the tilacoidal membrane, these reactions of the Calvin cycle take place in the stroma, which is the inner space of chloroplasts.