Question

Which of the following are not considered components of the Calvin Cycle?

1.fixation of carbon dioxide

2.oxidation of NADPH

3.ATP production

4.none of the above

5.regeneration of ribulose 1,5, bisphophate

Answer 1

Components of the Calvin Cycle are not considered are

4) None of the above

The Calvin cycle reactions can be divided into three main stages:

carbon fixation,

reduction,

regeneration of the starting molecule.

Carbon fixation: molecule combines with a five-carbon acceptor molecule, ribulose-1,5-bisphosphate (RuBP).

Reduction: ATP and NADPH are used to convert the 3-PGA molecules into molecules of a three-carbon sugar, glyceraldehyde-3-phosphate (G3P).

Regeneration: G3P molecules go to make glucose, while others must be recycled to regenerate the RuBP acceptor.