A sequence of biochemical reduction-oxidation reactions
that affects the transfer of electrons through a series
of carriers. Also known as the respiratory chain,
forms the final stage of aerobic respiration.
in the transfer of electrons or hydrogen atoms derived
from the Krebs cycle to molecular oxygen, with the
formation of water. It conserves energy from food or
light in the form of ATP.
Comprises a series of
carrier molecules that undergo reversible reduction-oxidation
reactions, accepting electrons and then donating them
to the next carrier in the chain – a process
known as electron flow. Also occurs in photosynthesis.