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Photosystems are
functional and
structural units of
protein complexes involved in photosynthesis.
Together they
carry out the
primary photochemistry of...
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Photosystem II (or water-plastoquinone oxidoreductase) is the
first protein complex in the energy-dependent
reactions of
oxygenic photosynthesis. It is...
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Photosystem I (PSI, or plastocyanin–ferredoxin oxidoreductase) is one of two
photosystems in the
photosynthetic light reactions of algae, plants, and...
- P680, or
photosystem II
primary donor, is the reaction-center
chlorophyll a
molecular dimer ****ociated with
photosystem II in plants, algae, and cyanobacteria...
- P700, or
photosystem I
primary donor, is a
molecular dimer of
chlorophyll a ****ociated with the reaction-center of
photosystem I in plants, algae, and...
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first electron carrier intermediate in the
electron transfer pathway of
Photosystem II (PS II) in plants, and the type II
photosynthetic reaction center...
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light energy to one
chlorophyll a
molecule at the
reaction center of a
photosystem. The
antenna pigments are
predominantly chlorophyll b, xanthophylls,...
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light dependent reactions: the
first occurs at
photosystem II (PSII) and the
second occurs at
photosystem I (PSI). PSII
absorbs a
photon to
produce a so-called...
- (P700) of
photosystem I are
replaced by
transfer from plastocyanin,
whose electrons come from
electron transport through photosystem II.
Photosystem II, as...
- cell walls, is less absorbed. Two
types of
chlorophyll exist in the
photosystems of
green plants:
chlorophyll a and b.
Chlorophyll was
first isolated...
