Biology › Section M · The animal body and digestion › Topic M.5
Nutrition and energy production
Food is an animal's only supply line: raw molecules for building the body, and fuel for burning it - with a short list of essentials the body cannot make.
In this topic
- The diet as supply line
- Carbohydrates: fuel and fibre
- Nitrogen and fat
- The essentials: eat or die
- Deficiency diseases
- From glucose to ATP
- Storage: the famine plan
- Appetite and obesity arithmetic
- Worked example: a marathon's fuel timeline
- Worked example: the incomplete-protein problem
- Common mistakes to avoid
- Key takeaways
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