29. Until the Krebs cycle,
aerobic respiration can be
described without mentioning
oxygen, the chemical element
after which the reaction gets
its name. Where in the
process does this chemical
element take part? What is its
importance?

Gap-fill exercise

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Oxygen enters the respiration in
its phase, the respiratory . It
is of importance because it
responsible for the of
the hydrogen gradient
between the separated by the
mitochondrial membrane. This
promotes the functioning the
ATP synthetase thus the
phosphorylation ADP to form . In
the space the inner membrane
binds to free to form
water this hydrogen consumption
the hydrogen gradient the
proton traffic the ATP
synthetase.

entire aerobic respiration
has the intent make the ATP
work. Aerobic beings,
example, we humans, to breathe
oxygen maintain that hydrogen
gradient and keep
ATP synthetase working.