Question

At what concentration of CO₂, C₃ plants shows saturation

• A. 450 µlL^-1
• B. 360 μlL^-1
• C. 540 μlL^-1
• D. 630 μlL^-1

Answer 1

Answer: (A)

C₄ plants show saturation at about 360 μlL^-1 while C₃ responds to increased CO₂ concentration and saturation is seen only beyond 450 μlL^-1.