Illustration of the photosynthetic reaction centre from the bacterium Rhodobacter sphaeroides showing the characteristic bundle of helical transmembrane segments (red) complexed to the light-harvesting compounds. The photosynthetic reaction centre contains proteins that absorb light and convert it to a form of energy that can be used by the cell.

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Photo credit: © FRANCISCO J. ENGUITA/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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