NEET BIOLOGY

Detailed explanation-1: -All plants require light for photosynthesis, the process within a plant that converts light, oxygen and water into carbohydrates (energy). Plants require this energy in order to grow, bloom and produce seed. Without adequate light, carbohydrates cannot be manufactured, the energy reserves are depleted and plants die.

Detailed explanation-2: -Sometimes people think that plants use heat from the Sun for photosynthesis. Photosynthesis uses the Sun’s light energy, not its heat energy. Plants can photosynthesize in both warm and cold places.

Detailed explanation-3: -Sunlight is absorbed by leaves of the plant. They use the absorbed sunlight during photosynthesis to make their own food.

Detailed explanation-4: -Certain colors or wavelengths of light are more important for plant growth than others. Leaves reflect and derive little energy from the yellow and green wavelengths of the visible spectrum. In contrast, the red and blue wavelengths of the light spectrum are the most important energy sources for plants.

Detailed explanation-5: -Although different species have varying light requirements, no plant can tolerate continuous light exposure for 24 hours a day. Like nature’s cycle of light and dark, plants need a daily period of darkness and rest to remain healthy.