Photosynthesis

AP Biology· difficulty 3/5

PSII (P680) gets its replacement electrons from

A
$Splitting water (which releases O₂)$
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B
$Reducing CO₂ (which releases C)$
C
$Oxidizing NADPH (which releases H⁺)$
D
$Hydrolyzing ATP (which releases ADP)$

Explanation

The oxygen-evolving complex on the lumen side of PSII splits 2 H₂O, releasing 4 e⁻ + 4 H⁺ + O₂.

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