EVERYDAY SCIENCE

Detailed explanation-1: -Chlorophyll A is the major pigment used in photosynthesis, but there are several types of chlorophyll and numerous other pigments that respond to light, including red, brown, and blue pigments. These other pigments may help channel light energy to chlorophyll A or protect the cell from photo-damage.

Detailed explanation-2: -Because they interact with light to absorb only certain wavelengths, pigments are useful to plants and other autotrophs–organisms which make their own food using photosynthesis. In plants, algae, and cyanobacteria, pigments are the means by which the energy of sunlight is captured for photosynthesis.

Detailed explanation-3: -Answer 1: Pigment molecules, just like any other molecule, have electrons that can “occupy” different energy levels. It turns out that in pigment molecules, the differences between certain energy levels correspond to the energies associated with specific wavelengths of visible light.

Detailed explanation-4: -Chlorophyll, the green pigment common to all photosynthetic cells, absorbs all wavelengths of visible light except green, which it reflects.

Detailed explanation-5: -Chlorophyll. Carotenoids. Phycobilins. Flavonoids.