Anatomy & Physiology › Section B · The chemical level › Topic B.3
Chemical reactions
Every heartbeat, thought and meal depends on chemical reactions, in which bonds break and new ones form. This topic covers how reactions are written, where their energy comes from, the three basic types, and why the body needs enzymes to make them happen fast enough.
In this topic
- Reactants, products and equations
- Energy in the body
- Exergonic and endergonic reactions
- Three types of reaction
- Reversible reactions
- Worked example: conservation of mass
- What controls the rate
- Activation energy and enzymes
- Worked example: naming the reaction
- Common mistakes to avoid
- Key takeaways
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