AP BIOLOGY

Detailed explanation-1: -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-2: -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-3: -Light intensity Without enough light, a plant cannot photosynthesise very quickly-even if there is plenty of water and carbon dioxide and a suitable temperature. Increasing the light intensity increases the rate of photosynthesis, until some other factor-a limiting factor-becomes in short supply.