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Assertion : This conversion of 1,3-bisho...

Assertion : This conversion of 1,3-bishosphoglycerate (BPGA) to 3-phosphoglyceric acid (PGA) is an energy yielding step.
Reason : This energy is trapped by the formation of ATP

A

If both assertion and reason are true and reason is the correct explanation of assertion

B

If both assertion and reason are true but reason is not the correct explanation of assertion

C

If assertion is true but reason is false

D

If both assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
b
The conversion of 1, 3 - bisphosphoglycerate (BPGA) to 3 - phosphoglyceric acid (PGA) is an energy yielding step. One of the two phosphates of bisphosphoglycerate is linked by high energy bond. It can synthesise ATP and form 3 - phosphoglycerate. The enzyme is phosphoglycerate kinase. The direct synthesis of ATP from metabolites is called substrate level phosphorylation.
1, 3 bisphosphoglycerate `+ ADP underset(+ Mg^(2))overset("Phosphoglycerate kinase")(hArr)` 3 - phosphoglycerate + ATP
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