Describe any three factors that could have an impact on the rate of photosynthesis. In other words, what types of conditions placed on a plant would speed up or slow down photosynthesis?

Transpiration is the answer

The answer to this will be from your lab notes/procedure. it would be best to ask another student who participated in the lab as we do not know what was done, what enzyme or if the temperature is celsius or fahrenheit. if i were to guess though i'd say the rate stopped due to enzyme denturing at high temperature