The Calvin cycle operates for 6 times to synthesize one glucose molecule.
So, the correct option is (C): 6 times

The current passing through the battery in the given circuit, is: 
A constant voltage of 50 V is maintained between the points A and B of the circuit shown in the figure. The current through the branch CD of the circuit is :
Photosynthesis in higher plants involves the following processes:
This process occurs in the absence of light in the stroma of the chloroplasts. The following cycles are involved in the process: