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Topic Notes · Easy summaries with diagrams
Chapter 5 — Chapter 5 — Enzymes
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📘Easy summary
Enzymes are biological catalysts, mostly globular proteins (some RNA ribozymes), that speed up reactions without being consumed; specific; work in small amounts; sensitive to temperature and pH. Active site: small 3-D pocket/cleft formed by a few amino acids of the folded chain; has binding site (holds substrate by weak bonds — specificity) and catalytic site (amino acid R groups that break/form bonds). Enzyme + substrate → ES complex → enzyme + products.
⭐Key points
- Specific; reusable.
🔬Diagram
🌿Real-life example
Catalase: 2H₂O₂ → 2H₂O + O₂.
💡Exam tip
- Binding vs catalytic site.
✅Quick check
1. Correct about enzymes:
2. Active site made of:
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