First slide

Factors affecting Photosynthesis

Question

${CO}_{2}$ saturation point for $C_{3}$ plants (A) and $C_{4}$ plants (B) is

A B
1. 360 $μL / L$ 450 $μL / L$
2. 450 $μL / L$ 360 $μL / L$
3. 250 $μL / L$ 150 $μL / L$
4. 360 $μL / L$ 650 $μL / L$

Easy

A

1
B

2
C

3
D

4

Solution

CO₂ saturation point is higher for C₃ plants than C₄ plants. 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.

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