Chlorophyll

Definition

Chlorophyll is a green pigment found in plants, algae, and cyanobacteria that absorbs light energy (specifically blue and red wavelengths) to carry out photosynthesis.

Related terms

Pigment: A substance that gives color to plant tissues by absorbing certain wavelengths of light and reflecting others.

Photosynthesis:

The process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll pigments.

Photons: Particles representing a quantum of light or other electromagnetic radiation; absorbed by chlorophyll during photosynthesis.