Page 328 - Biochemistry PharmD General
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Fatty acid oxidation

Fatty acids are degraded to acetyl CoA

• Fatty acids enter tissue cells in need of energy.

• Fatty acids must pass through the mitochondrial
   membrane to be oxidized and to produce energy.

• The passage cannot occur until the fatty acid is
   converted to its thioester with CoA. The product of
   this reaction is fatty acyl CoA.

• This is known as activation of fatty acid. Fatty acids
   must be activated before they are degraded to
   produce energy.

• Fatty acids are activated in the cytosol, but oxidation

occurs in the mitochondria.                          327
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