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# $FADH_2$ and $FAD$ : Life's reducer and oxidant

$FADH_2$ can be compared to a basket with two hydrogen ions and two electrons. It can transmit these electrons so act as reducer . The $FAD$ is comparable to the empty basket. It can recapture both electrons and hydrogen ions (dehydrogenate!), So act in oxidant

# The $FADH_2$ structure

1 : adenine 2 : ribose 3 : flavin 4 : diphosphate group Hence the name: FlavinAdenineDinucleotide

# How $FADH_2$ works

The 2 $H^+$ and 2 $e^-$ exchange is taken place in the isoalloxazine group of flavin .