1. Chapter 4 Enzymes

3. BBQ

8. time

9. Terms to know: substrate : substances on which enzymes act upon Note the surface configuration/shape of the substrate & enzymes Enzyme-substrate complex

10. Lock & Key Hypothesis

12. +

13. synthetase hydrolase

18. Carbohydrate Carbohydrates Monosaccharides Disaccharides Polysaccharides (simple sugars) (complex sugars) starch cellulose glycogen e.g. maltose, lactose, sucrose e.g. glucose, galactose, fructose

19. Disaccharides & Monosaccharides maltase lactase sucrase glucose + fructose Sucrose glucose + galactose Lactose glucose + glucose Maltose Monosaccharide Disaccharide

21. Enzymes Active site : the substrate binding site of an enzyme The shape of the substrate has to be complementary to the active site for the chemical reaction to take place

23. 3) Breakdown of complex substances Chemical reactions produce H 2 O 2 H 2 O 2 is toxic to tissues Cells produce catalase Catalase breaks down hydrogen peroxide  water and oxygen

25. Classification of enzymes