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Alex_Xolod [135]
3 years ago
15

The product of the Calvin cycle is a triose-phosphate sugar that is either exported from the chloroplast or used to regenerate R

UBP. How many times must each of the reactions in the Calvin cycle take place in order to complete the synthesis of one 3-carbon triose phosphate sugar molecule? O 2 1 O 6 O 3
Chemistry
1 answer:
Alekssandra [29.7K]3 years ago
6 0

Answer:

Each of the reaction must take place three (3)times

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.

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Now  Nitrogen has a coefficient of  2  on both sides of the reaction. Hence the balanced chemical equation will thus be

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