21. Photosynthesis is an oxidation-reduction process. Which of the following statements about this redox process is correct?

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Q21. Photosynthesis is an oxidation-reduction process.

Which of the following statements about this redox process is correct?

  1. The oxidation of NADPH by the Calvin Cycle is linked to the reduction of CO2.
  2. In the electron transport chain, plastocyanin is easier to be oxidized than PQ.
  3. Following light absorption H2O is oxidized to O2.
  4. Absorption of light by P700 makes it easier to be reduced.

 

A. 1, 2 and 3

B. 1 and 3

C. 2 and 4

D. 4 only

E. All of 1,2,3 and 4 are correct

 
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