AP BIOLOGY

Detailed explanation-1: -During the photosynthesis, the sunlight and chlorophyll act as a catalyst, help the reaction to occur faster while carbon dioxide and water molecules are used up during the reaction to produce glucose.

Detailed explanation-2: -Light. As light intensity increases so too does the rate of photosynthesis until a certain point where the graph levels off. At lower light intensities, light is the limiting factor because an increase in light causes an increase in photosynthesis.

Detailed explanation-3: -Plant cells’ photosynthetic machinery includes light-absorbing pigments such as chlorophyll that capture photons from sunlight. This energy is then transferred to other proteins that store the energy as ATP, and that energy is then used to produce carbohydrates.