LIFE SCIENCE

Detailed explanation-1: -Hence if the temperature is increased to more than 35oC there will be a decline in the rate of photosynthesis due to denaturation of carbon fixing enzymes. Similarly, at very high temperatures, the rate of respiration also falls significantly.

Detailed explanation-2: -The maximum temperature at which photosyntheis can occur is 55∘C in some desert plants and 75∘C for hot spring algae. When temperature is increaed from minimum to optimum, the rate of photosynthesis fdoubles for every 10∘C rise in temperature.

Detailed explanation-3: -Photosynthesis stops to occur at a temperature above 40‘C not 35‘C. At higher temperature the enzymes responsible for the process of photosynthesis gets destroyed.