Question

Optimum temperature condition for photosynthesis in $C_3$ and $C_4$ plants are respectively

• A. ${10}^{o}C-{25}^{o}C$ and ${30}^{o}C-{45}^{o}C$
• B. ${30}^{o}C-{45}^{o}C$ and ${10}^{o}C-{25}^{o}C$
• C. $0^{o}C-{10}^{o}C$ and ${10}^{o}C-{30}^{o}C$
• D. ${25}^{0}C-{30}^{0}C$ and ${40}^{0}C-{50}^{0}C$

Answer 1

Answer: (A)

${10}^{o}C-{25}^{o}C$ and ${30}^{o}C-{45}^{o}C$

The optimum temperature is ${10}^{o}C-{25}^{o}C$ for $C_3$ plants and ${30}^{o}C-{45}^{o}C$ for $C_4$ plants.

So the correct option is A.