Question

What happens to the rate of photosynthesis / productivity when the temperature is gradually increased beyond the optimum temperature?
1. Temperature has no effect on photosynthesis
2. Productivity decreases
3. Productivity remains the same
4. Productivity increases

Answer 1

Correct Answer - Option 2 : Productivity decreases

The correct answer is Productivity decreases

• The temperatures of 10 to 35 degrees are suitable for photosynthesis.
• Normally, the process of photosynthesis stops in plants when the temperature is more than 49° C and below 0° C.
• At temperatures exceeding the limit, the activation of enzymes decreases, which slows or stops the photosynthesis process. 
• Some of the major factors affecting the action of photosynthesis are water, carbon dioxide, sunlight, and temperature.
• The rate of photosynthesis doubles with every 10° C temperature increase.
• The rate of photosynthesis is maximum in the presence of Red and Blue light.