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Question
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?
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?
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Solution
The correct option is B 16
In normal Calvin cycle, 6 molecules of ribulose 1, 5- bisphosphate molecules is converted to 12 PGA Thus, 8 molecules of Ribulose 1, 5- bisphosphate molecules is converted to (8 X 12)/ 6= 16 Phospho glyceric acid.Thus, the correct answer is option B.
In normal Calvin cycle, 6 molecules of ribulose 1, 5- bisphosphate molecules is converted to 12 PGA
Thus, 8 molecules of Ribulose 1, 5- bisphosphate molecules is converted to
(8 X 12)/ 6= 16 Phospho glyceric acid.
Thus, the correct answer is option B.
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