First slide

Factors affecting Photosynthesis

Question

In Sorghum, optimum ${CO}_{2}$ concentration for photosynthesis is

Easy

A

360 ppm
B

450 ppm
C

1000 ppm
D

50 to 60 ppm

Solution

Sorghum is a $C_{4}$ plant. $C_{4}$ plants show saturation at about 360 ${μlL}^{- 1} .$ While $C_{3}$ responds to increased ${CO}_{2}$ concentration and saturation is seen only beyond 450 ${μlL}^{- 1} .$

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