NEET BIOLOGY

Detailed explanation-1: -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. By the process of photosynthesis, light energy is turned into chemical energy.

Detailed explanation-2: -In most plants, photosynthesis fluctuates throughout the day as stomata open and close. Typically, they open in the morning, close down at midday, reopen in late afternoon and shut down for good in the evening. Carbon dioxide is plentiful in the air, so it is not a limiting factor in plant growth.

Detailed explanation-3: -Plants carry out photosynthesis only during the day and respiration only at night.

Detailed explanation-4: -Photosynthesis can take place 24 hours of the day if a plant has access to light (sunlight or artificial). Photosynthesis can also occur in the presence of artificial source of light (absence of sunlight) but with less efficiency. Photosynthesis requires the presence of blue and red light with high energy.