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Q.
A major limiting factor for photosynthesis in $C_{3}$ plants is
NTA AbhyasNTA Abhyas 2022
Solution:
For $C_{3}$ plants, $C O_{2}$ fixation is carried out by enzyme RUBISCO which is highly sensitive to $C O_{2}$ concentration. Increases in $C O_{2}$ concentration increases the rate of photosynthesis and decreases in $C O_{2}$ concentration decreases the rate of photosynthesis.