In metabolism, fatty acids must first undergo which process?

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Multiple Choice

In metabolism, fatty acids must first undergo which process?

Fatty acid degradation begins with beta-oxidation. Once fatty acids are mobilized and made available for energy, the long chain is processed by beta-oxidation in cycles that shorten the molecule by two carbons each time, producing acetyl-CoA along with NADH and FADH2. That acetyl-CoA then feeds the TCA cycle to generate additional energy via the electron transport chain. In other words, beta-oxidation is the step that starts turning fatty acids into usable energy units, whereas the other options represent different pathways or earlier mobilization steps (lipolysis releases the fatty acids; glycolysis processes glucose; the glyoxylate cycle is a different carbon-conserving pathway not used for fatty acid degradation in most animals).

Fatty acid degradation begins with beta-oxidation. Once fatty acids are mobilized and made available for energy, the long chain is processed by beta-oxidation in cycles that shorten the molecule by two carbons each time, producing acetyl-CoA along with NADH and FADH2. That acetyl-CoA then feeds the TCA cycle to generate additional energy via the electron transport chain. In other words, beta-oxidation is the step that starts turning fatty acids into usable energy units, whereas the other options represent different pathways or earlier mobilization steps (lipolysis releases the fatty acids; glycolysis processes glucose; the glyoxylate cycle is a different carbon-conserving pathway not used for fatty acid degradation in most animals).

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