of excitation energy through the light harvesting antennae to the photosynthetic reaction centre.

Chlorophyll c can be further divided into chlorophyll c₁, chlorophyll c₂, and chlorophyll c₃, plus at least eight other more recently found subtypes.

Chlorophyll c₁

Chlorophyll c₁' is a common form of chlorophyll c. It differs from chlorophyll c₂ in its C8 group, having an ethyl group