Photosynthesis, Respiration, and Ecosystem Energy Flow
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Biology Q & A Practice
1 of 5 A-Level exam-style exercises in this topic
PSII absorbs light
Electron excited
Process P
Replacement electron s
upplied
Outcome Q
Figure 1: evidence supplied for the question
Which light-dependent event directly supplies electrons lost from photosystem II?
Select one option.
A
Photolysis of water
B
Reduction of carbon dioxide
C
Oxidation of NADPH
D
Carboxylation of RuBP
E
Decarboxylation of pyruvate
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