Cellular Basics

Plant Cell Basics

How do chlorophyll a and chlorophyll b play a part in photosynthesis?

During photosynthesis, light is absorbed by pigments present in organisms. Chlorophyll a is the primary pigment required for photosynthesis and occurs in all photosynthetic organisms except photosynthetic bacteria. Accessory pigments such as carotenoids and chlorophyll b absorb light that chlorophyll a cannot absorb; these pigments extend the range of visible light useful for photosynthesis.


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