A) higher in\[{{C}_{3}}\]plants
B) higher in\[{{C}_{4}}\]plants
C) equal in\[{{C}_{3}}\]and\[{{C}_{4}}\]plants
D) zero for both type of plants.
Correct Answer: A
Solution :
:\[C{{O}_{2}}\] compensation point is the certain\[C{{O}_{2}}\]concentration at which rate of photosynthesis is just equal to rate of respiration or photosynthesis just compensates respiration or apparent photosynthesis is nil.\[C{{O}_{2}}\]compensation point is very low in\[C-4\]plants, i.e., 0 to 5 ppm whereas high\[C{{O}_{2}}\]compensation point is found in\[C-3\]plants, i.e. 25 to 100 ppm.
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