Anatomy & Physiology › Section V · Metabolism and nutrition › Topic V.2
Carbohydrate metabolism
Glucose is the body's most readily used fuel, and the brain and red blood cells depend on it. This topic follows one glucose molecule through glycolysis, the citric acid cycle and the electron transport chain, counts the ATP it yields, and shows how the liver makes new glucose when supplies run low.
In this topic
- Three stages of cellular respiration
- Glycolysis: the investment phase
- Glycolysis: the payoff phase
- Without oxygen: lactate
- With oxygen: pyruvate oxidation and the citric acid cycle
- The electron transport chain and ATP synthase
- Worked example: the ATP tally for one glucose
- Gluconeogenesis
- Worked example: the cost of the Cori cycle
- Common mistakes to avoid
- Key takeaways
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