Question

At a temperature above ${35}^{o}C$

• A. Rate of photosynthesis will decline earlier than that of respiration
• B. Rate of respiration will decline earlier than that of photosynthesis
• C. There is no fixed pattern
• D. Both rate of photosynthesis and respiration decline simultaneously

Answer 1

Answer: (A)

Rate of photosynthesis will decline earlier than that of respiration

At a temperature above 35°C, the enzymes that carry out photosynthesis do not work efficiently, which results in a decrease in the photosynthetic rate. Leading to a decrease in glucose production but the process of respiration takes place at normal level.

So, the correct option is 'Rate of photosynthesis will decline earlier than that of respiration'.