Answer:
Each of the reaction must take place three (3)times
Step-by-step explanation:
The Calvin cycle occurs in the stroma of the chloroplast using the energy generated during the light dependent phase of photosynthesis.
In the stroma, Ribulose -1,5 bisphosphate carboxylase catalyses the addition of one carbon dioxide molecule to ribulose -1,5- bisphosphate to form an unstable hexose compound of 2-carboxy 3-keto 1,5 -bisphosphoribotol which breakdown to form 2 molecules of 3-phosphoglycerate. The latter is them phosphorylated by phosphoglycerate kinase using two ATP and finally glyceraldehyde 3- dehydrogenase enzyme catalyses NADPH reduction of 1,3bisphosphoglycerate to glyceraldehyde 3-phosphate. 3 molecules of carbondioxide yielded 6G3P and five is used to generate RuBP and one molecule of G3P left.