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Energy Expenditure in Calvin Cycle

catalyses the...

Question

catalyses the carboxylation of ribulose-1,5-bisphosphate using carbon dioxide.

A

DHAP

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B

3-PGA

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C

Fo/F1 subunit

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D

RuBisCO

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Solution

The correct option is D RuBisCO
In carboxylation phase of the Calvin cycle, CO $_{2}$ is utilized for the carboxylation of ribulose-1,5-bisphosphate (RuBP) to generate two molecules of 3-Phosphoglyceraldehyde.. This reaction is catalysed by RuBP carboxylase/oxygenase (RuBisCo).

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Q. Ribulose-1,5-bisphosphate carboxylase/oxygenase enzyme catalyses the carboxylation between

Q. Rearrange the following stages of Calvin cycle in correct order.
1. Reduction during which carbohydrate is formed at the expense of the photochemically made ATP and NADPH.
2. Regeneration, during which the carbon dioxide acceptor ribulose-1,5-biphosphate is formed.
3. Carboxylation during which carbon dioxide combines with ribulose-1,5-biphosphate.

The Calvin cycle proceeds in three stages:

1. Reduction, during which carbohydrate is formed at the expense of the photochemically made ATP and NADPH.

2. Regeneration, during which the carbon dioxide acceptor ribulose-1, 5-bisphosphate is formed.

3. Carboxylation, during which carbon dioxide combines with rubulose-1, 5-biphosphate.

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Q. If 8 molecules of ribulose 1, 5- bisphosphate molecules are carboxylated by RUBISCO, how many PGA molecules are ultimately available to PCR cycle in photosynthetic carbon carboxylation cycle?

Q. The Calvin cycle proceeds in three stages.
(1) Reduction, during which carbohydrate is formed at the expense of the photochemically made ATP and NADPH.
(2) Regeneration, during which the carbon dioxide acceptor ribulose-1,5-biphosphate is formed.
(3) Carboxylation, during which carbon dioxide combines with ribulose-1, 5-biphosphate.
Identify the correct sequence from the following.

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Energy Expenditure in Calvin Cycle

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