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Question
When CO2 is added to PEP, the first stable product synthesised is
When CO2 is added to PEP, the first stable product synthesised is
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Solution
The correct option is C Oxaloacetate
Oxaloacetate is the first stable product formed through the fixation of CO2 in C4 plants. In the C4 pathway, PEP, the primary CO2 acceptor, is present in the mesophyll cell. PEP by CO2 in the presence of the enzyme PEPCase is converted to oxaloacetic acid which is further converted to malic acid or aspartic acid and transported to the bundle sheath cells where the Calvin cycle takes place.
Oxaloacetate
Oxaloacetate is the first stable product formed through the fixation of CO2 in C4 plants. In the C4 pathway, PEP, the primary CO2 acceptor, is present in the mesophyll cell. PEP by CO2 in the presence of the enzyme PEPCase is converted to oxaloacetic acid which is further converted to malic acid or aspartic acid and transported to the bundle sheath cells where the Calvin cycle takes place.
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