ENZYMES SE: 9C

1. ENZYMESSE: 9C What biomolecule speeds up digestion & starts in the mouth? structure & function

2. ENZYMES • Biomolecules (proteins) that speed up a reaction • Are NOT used up during a reaction • Reactions need LESS energy in the presence of enzymes

3. specific enzymes bind to specific substrates (reactants) • fit like a lock and key Product Substrate Active Site Enzyme

4. Specific enzymes “fit” with specific substrates like a LOCK and KEY

6. Types of Enzymes • Lactase breaks down lactose… What happens if you’re lactose intolerant? Your body doesn’t produce the lactase enzyme to break down lactose

7. What happens when your body doesn’t produce lactase? Lactose Intolerance

8. Enzymes & Substrates Sucrase – digests complex sugars & starches Lipase – breaks down fats in dairy products, nuts, oils & meats Protease – breaks down proteins found in meats, nuts, eggs & cheese

9. Hexokinase breaks down ATP & glucose (a sugar) • Catalase breaks down proteins from animals and protists

11. Enzymes lower the amount of energy needed in a reaction

12. Less energy required means a faster reaction

13. What can affect the rate of reaction?Temperature, pH & Concentration

14. Temperature

16. Effects of temperature on ezyme reaction rate

17. pH

18. Effect of pH on reaction rate of serrapeptase enzyme

19. pH

20. Effects of enzyme concentration on reaction rate

21. Concentration