Biology / Unit 3 Bio 0569 short lesson, about 20 seconds
Protein Catabolism Connects to Respiration
Captions available
The idea
An amino acid, once stripped of its amino group, can enter glycolysis or the citric acid cycle where its remaining carbon skeleton matches an existing intermediate.
In practice
A cell breaking down excess protein removes each amino acid's amino group before feeding the carbon skeleton into these pathways.
Where people slip
Only the carbon skeleton, not the whole amino acid, enters these pathways.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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