Credit: FRANCIS LEROY & NATHAN PETIT, BIOCOSMOS/SCIENCE PHOTO LIBRARY

Caption: Animation showing the process of anoxygenic cyclic photophosphorylation in purple bacteria. This is a form of photosynthesis (the production of energy from light) that does not produce oxygen as a byproduct. Light (yellow dotted line) excites the reaction centre (dark green) in the bacterial cell membrane, causing it to donate an electron (dark blue) to plastoquinol (white oval). Plastoquinol carries the electron to the cytochrome b6f complex (light pink), which transfers the electron to plastocyanin reductase (purple sphere). This causes the movement of a proton (small white sphere) into the cell, generating a proton gradient. Plastocyanin reductase carries the electron back to the reaction centre, where it can be used again. The proton gradient created within the cell is used to drive the production of ATP (adenosine triphosphate), the molecular carrier of energy.

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Keywords: animated, animation, anoxygenic, atp, atp synthase, atpase, bacterial, bacterium, biochemical, biochemistry, biological, biology, black background, cell membrane, cyclic, cytochrome b6f complex, electron transfer chain, electron transport, energy, label, labeled, labelled, labels, light-dependent, metabolism, microbiological, microbiology, photophosphorylation, photosynthesis, photosystem i, phototrophic, plastocyanin reductase, plastoquinol, prokaryote, prokaryotic, proton gradient, purple bacteria, reaction centre, text

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Anoxygenic photosynthesis in bacteria

K004/3647 Rights Managed

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Duration: 00:00:42.22

Frame size: 1920x1080

Frame rate: 24

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 475.3M

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Capture format: QuickTime Animation

Codec: Animation

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