Anatomy & Physiology › Section U · The digestive system › Topic U.6
Chemical digestion and absorption
Bread, cheese and butter are made of molecules far too large to cross a cell membrane. This topic follows how enzymes cut each kind of nutrient into absorbable pieces, and which route each piece takes into the body.
In this topic
- From polymers to building blocks
- Carbohydrate digestion
- Worked example: counting hydrolysis products
- Protein digestion
- Lipid and nucleic acid digestion
- How the gut absorbs
- Sugars and amino acids
- Fats: micelles and chylomicrons
- Worked example: sorting nutrients by route
- Vitamins, minerals and water
- Common mistakes to avoid
- Key takeaways
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