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The light-dependent reaction

The first stage of photosynthesis on one map. Follow an electron from water to reduced NADP, and a proton through ATP synthase. Pick your exam board for its wording, then quiz yourself or try an exam question.

The light-dependent reaction Light, water, photosystem II, the electron transport chain, photosystem I and NADP on a map, with protons in the thylakoid space, ATP synthase and ATP below. Arrows show electrons, protons and photolysis, coloured by type; a dashed arrow shows cyclic photophosphorylation. The same steps are listed as a table below the map.
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Every step on the map

The same steps as the map, as a list, in the wording of the board you picked. Use it to revise, or print this page.

What it makes