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Question

In presence of high concentration of oxygen, RuBP carboxylase converts RuBP to

A
Malic acid and PEP
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B
PGA and PEP
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C
PGA and malic acid
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D
PGA and phosphoglycolate
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Solution

The correct option is D PGA and phosphoglycolate

The reaction catalyzed by ribulose bisphosphate carboxylase/ oxygenase.

When rubisco binds oxygen to RuBP, the RuBP is essentially split in half to a 3 carbon piece and a 2 carbon fragment according to the following reaction:

RuBP + oxygen + rubisco → PGA (C3)+ phosphoglycolate (C2).

So, the correct option is 'PGA and phosphoglycolate'.


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