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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.

Analogy

Think of chlorophyll as solar panels on a house. Just like solar panels absorb sunlight to convert it into electricity for the house, chlorophyll absorbs sunlight to convert it into chemical energy for the plant.

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.

"Chlorophyll" appears in:

Practice Questions (3)

  • Chlorophyll is a pigment which __.
  • What does chlorophyll do?
  • The chloroplast contains chlorophyll to harvest light energy. Chlorophyll is embedded in the membranes of __, which are organized in stacks called __.


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© 2024 Fiveable Inc. All rights reserved.

AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.