AAT Bioquest

Why is the chloroplast green?

Posted August 25, 2022


Chloroplasts house a pigment called chlorophyll, which is responsible for absorbing energy from sunlight to carry out photosynthesis. Chlorophyll absorbs only blue and red wavelengths for photosynthesis. It does not absorb green wavelengths. Instead, it reflects green light, causing the chloroplast to appear green.

Additional resources

Green giant-a tiny chloroplast genome with mighty power to produce high-value proteins: history and phylogeny