AP BIOLOGY

Detailed explanation-1: -Photosynthesis begins with the light reaction which is carried out only during the day in the presence of sunlight. In plants, the light-dependent reaction takes place in the thylakoid membranes of chloroplasts.

Detailed explanation-2: -Photosynthesis in plants occurs only during the day when there is the sunlight but plants respire throughout the day and night. To carry out the process of photosynthesis, sunlight is important for the plant.

Detailed explanation-3: -Photosynthesis: Photosynthesis is not performed by plants at night. Plants can only undergo photosynthesis at night if they are exposed to the appropriate wavelengths of artificial light. With the help of the chlorophyll pigment, light energy is absorbed.

Detailed explanation-4: -Photosynthesis is not an event but rather a process. It occurs continuously whenever sunlight is present. As soon as the sun rises, photosynthesis begins. Energy from sunlight drives the process and so will continue as long as sunlight is available.

Detailed explanation-5: -At night, photosynthesis stops but respiration continues, so there is a net consumption of oxygen.