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Chlorophyll a
Chlorophyll
a
is a specific form of
chlorophyll
used in
oxygenic
photosynthesis
. It absorbs most energy from
wavelengths
of violet-blue and orange-red light. It also reflects green/yellow light, and as such contributes to the observed green color of most plants. This
photosynthetic pigment
is essential for photosynthesis in
eukaryotes
,
cyanobacteria
and
prochlorophytes
because of its role as primary electron donor in the
electron transport chain
. Chlorophyll
a
also transfers resonance energy in the
antenna complex
, ending in the
reaction center
where specific chlorophylls
P680
and
P700
are located.
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