DENDROLOGY

Detailed explanation-1: -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-2: -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-3: -During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose.

Detailed explanation-4: -Light intensity Without enough light, a plant cannot photosynthesise very quickly-even if there is plenty of water and carbon dioxide and a suitable temperature. Increasing the light intensity increases the rate of photosynthesis, until some other factor – a limiting factor – becomes in short supply.