Directions : In the following question more than one of the answers given may be correct. Select the correct answer and mark it according to the code:
Lowering the oxygen concentration (1) stimulates \[{{C}_{3}}\]photosynthesis (2) inhibits \[{{C}_{3}}\] photosynthesis (3) does not affect \[{{C}_{4}}\]photosynthesis (4) stimulates \[{{C}_{4}}\]photosynthesisA) 1, 2 and 3 are correct
B) 1 and 2 are correct
C) 2 and 4 are correct
D) 1 and 3 are correct
Correct Answer: D
Solution :
If the amount of oxygen in the atmosphere decreases than photosynthesis will increase in \[{{\text{C}}_{\text{3}}}\text{-}\]cycle while no change occurs in \[{{\text{C}}_{\text{4}}}\text{-}\]cycle.
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