Question: Place the following events in the correct order for the
two-photosystem light reactions. 1) Elect…
Place the following events in the correct order for the
two-photosystem light reactions. 1) Electrons are transferred to
the b6F complex with concomitant influx of protons into the
thylakoid lumen. 2) Electrons are passed through to ferredoxin and
then ultimately to NADP+, reducing the latter to NADPH. 3)
Electrons are transferred to plastoquinones, which serve as
intermediate electron transporters. 4) Light energy is absorbed by
photosystem II, placing it in an excited state, causing it to
release electrons, which are replaced by the oxidation of water to
oxygen. 5) Electrons are transferred to photosystem I via
plastocyanin.
