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Question

Radioactive C14 is given to CO2 and released into the atmosphere. This CO2 is taken by RuBP in a C3 plant. First radioactive C14 is seen in which compound?

A
PGAL
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B
PEP
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C
RMP
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D
PGA
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Solution

The correct option is C PGA
First radioactive C14 could be seen in phosphoglyceric acid. It is because, PGA is the first stable product in Calvin cycle produced by reaction between CO2 and RUBP.
125627_65519_ans_ba1fc1afbf5c4f238965ca6d631cc565.PNG

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