The Calvin cycle of photosynthesis starts when the energy of light is processed to chemical energy within the cells of plants. The ATP molecules created power the Calvin cycle. The Calvin cycle utilizes energy to create carbohydrates from h20 and co2.
Nervous system is the body system that is involved in coordinating and controlling body movements
I believe the correct answer is A. Increases the rate of a chemical reaction. This is because they act as catalysts.
