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Question

In the pathway of dark reaction,which occur in all photosynthetic plants,primary CO2 acceptor contains how many carbon(s)?

A
3
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B
4
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C
1
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D
5
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Solution

The correct option is C 5
Carbon dioxide is captured by the chemical ribulose biphosphate (RuBP). RuBP is a 5-C chemical. Six molecules of carbon dioxide enter the Calvin Cycle, eventually producing one molecule of glucose.
So, the correct option is '5'.

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