Biology / Bio 0591 · Atom · ~20 seconds
Photosystem Structure
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A photosystem pairs a light-harvesting complex of antenna pigments with a reaction center, funneling light energy to a special chlorophyll a pair that releases an electron.
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Hundreds of antenna pigments in one photosystem pass captured energy inward until it reaches the reaction center.
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Only energy, not an electron, passes between antenna pigments — an electron releases only at the reaction center.