Question

why does the denaturing of enzymes and other proteins at high temperatures dramatically lower the rate of photosynthesis?

Answer 1

Because the enzymes do not work as efficiently at this temperature.

Step-by-step explanation:

High Temperatures,

At temperatures above 68 degrees Fahrenheit or 20 degrees Celsius, the rate of photosynthesis decreases because the enzymes do not work as efficiently at this temperature. This is despite the increase of carbon dioxide diffusion into leaves.