Electron transport chain — Free Biology Illustration

Biology

Electron transport chain

Simplified educational biochemical diagram of the electron transport chain shown in side view as a horizontal linear row of several distinct membrane-associated or transmembrane protein complexes arranged from left to right. Each major complex has a different clear silhouette—blocky, rounded, bulky, oval, cylindrical, or multi-domain transmembrane assemblies—embedded in or aligned with a narrow membrane band or implied membrane segment. Some complexes include visible membrane-spanning regions, protruding domains, channel-like features, and small embedded redox centers such as colored spheres, heme-like groups, or metallic cofactors. Small mobile carrier molecules or symbols appear between the major complexes, while arrows or electron dots indicate stepwise electron flow along the chain from one complex to the next. The overall style is compact, clean, and pathway-focused rather than a full cellular scene, and may optionally include a final ATP-producing complex at the end.

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