AP BIOLOGY

Detailed explanation-1: -The rate of photosynthesis increases as the temperature rises. During photosynthesis, a temperature of more than 40 °C slows down the process. Because it is an enzyme-controlled process, this is the case. It occurs as a result of enzymes being involved in temperature-sensitive chemical processes.

Detailed explanation-2: -As temperature increases the number of collisions increases, therefore the rate of photosynthesis increases. However, at high temperatures, enzymes are denatured and this will decrease the rate of photosynthesis.

Detailed explanation-3: -Temperature-Increasing the temperature increases the rate of photosynthesis because more energy is provided. However, if the temperature is increased to above about 45°C, the enzymes that catalyse (speed-up) the reaction begin to denature (not work anymore).

Detailed explanation-4: -However, extremely high temperatures disrupt the shape of the active site, which will reduce its activity, or prevent it from working. The enzyme is now denatured . Enzymes therefore work best at their optimum temperature.

Detailed explanation-5: -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.