Why is the Calvin cycle called a cycle?

Answer 1

The Calvin cycle is called such because every process produces something that the next process needs, right back to the original step. Carbon fixation produces the molecules needed for reduction, which produces the molecules needed for the regeneration of ribulose, which produces what's needed for carbon fixation.

Answer 2

Because in the Krebs Cycle for example, the cycle "begins" with 4 carbon molecules, then through a series of reactions, Carbon dioxide is formed which leaves the cycle, which leaves 4 carbon molecules remaining, these four carbon molecules are then used to behind the cycle again, this is why it is called a cycle

Answer 3

The Calvin cycle is called a cycle because it is a series of biochemical reactions that regenerate the starting molecule. The cycle starts with a 5-carbon molecule (RuBP) and ends with the regeneration of RuBP, allowing the process to continue in a cyclic manner.

Answer 4

The Calvin Cycle is called a cycle because it is a series of steps that repeat themselves continuously.

Answer 5

The Calvin cycle is a cycle because in the course of the cycle its starting material is regenerated.