Page 40 - Cell biology PDC 2024
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Figure 18: Krebs cycle
4) Oxidative phosphorylation: Oxidative phosphorylation is the
process in which ATP is formed as a result of the transfer of electrons
from NADH or FADH2 to O2 by a series of electron carriers. It is the
major source of ATP in aerobic organisms and occurs in the
mitochondria. It is linked to a process called electron transport.
The electron transport system, located in the inner mitochondrial
membrane, transfers electrons donated by the reduced electron
carriers NADH and FADH2 (obtained from glycolysis, the citric acid
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