3. Enzymes Chemical Reactions Macro- molecules Macro II Lab Bag 100 200 300 400 500

4. TRUE or FALSE: Enzymes are used up in the chemical reaction that they catalyze. Enzymes- 100

5. FALSE Enzymes initiate chemical reactions, but they are not reactants. Back to the Game!

6. What is the location on an enzyme where the substrate attaches and a chemical bond is either broken or formed? Enzymes - 200

7. active site Back to the Game!

8. Enzymes work by lowering the ________________ or the amount of energy required to start a chemical reaction. Enzymes - 300

9. activation energy Back to the Game!

10. What is the name of the enzyme found in the liver of animals that breaks down toxic hydrogen peroxide into nontoxic products? Enzymes - 400

11. catalase Back to the Game!

12. Once a substrate binds to the active site of an enzyme, the active site changes shape and forms this. Enzymes - 500

13. enzyme-substrate complex Back to the Game!

14. A _______ speeds up or slows down a chemical reaction without being changed or used up in the reaction. Chemical Reactions - 100

15. catalyst Back to the Game!

16. What are the reactants in this chemical equation? N 2 + O 2  2NO Chemical Reactions - 200

17. N 2 + O 2 Back to the Game!

18. What kind of reaction is pictured? Chemical Reactions - 300 Products Reactants

19. endothermic reaction or energy-absorbing reaction Back to the Game!

20. List three ways to speed up a chemical reaction. Chemical Reactions - 400

21. 1. add a catalyst 2. increase the temperature 3. increase the concentration of the reactants 4. favorably change the pH Back to the Game!

22. What is released when a chemical bond is broken? Chemical Reactions - 500

23. energy Back to the Game!

24. What two types of lipids provide insulation, provide buoyancy, and can serve as long term energy storage molecules? Macromolecules - 100

25. fats and oils Back to the Game!

26. What group of lipids includes cholesterol, a molecule that transports fats throughout the body? Macromolecules - 200

27. steroids Back to the Game!

28. List three functions of proteins. Macromolecules - 300

29. Proteins provide structure, allow movement, fight disease, transport substances, permit cell communication, speed up chemical reactions, and regulate cell growth. Back to the Game!

30. Is this fatty acid, saturated, unsaturated, or polyunsaturated? Macromolecules - 400

31. saturated Back to the Game!

32. Carbohydrates, proteins, and nucleic acids are polymers. List their monomers. Macromolecules - 500

33. Carbohydrates  monosaccharides Proteins  amino acids Nucleic acids  nucleotides Back to the Game!

34. This group of molecules stores genetic information in molecules like DNA and RNA. Macro II - 100

35. nucleic acids Back to the Game!

36. What is the general formula for a carbohydrate? Macro II - 200

37. (CH 2 O) n Back to the Game!

38. Adrenaline and testosterone are examples of this type of steroid. Macro II - 300

39. hormone Back to the Game!

40. Carbon can form up to four __________ bonds with other atoms, making it ideal for building a wide variety of molecules. Macro II - 400

41. covalent Back to the Game!

42. Plants can store energy in a polysaccharide called _________ which we tested for in our recent laboratory using iodine solution. Macro II - 500

43. starch Back to the Game!

44. Benedict’s solution is a light blue solution. When heated in the presence of monosaccharides or disaccharides (sugars), it turns to this color. Lab Bag - 100

45. red - orange Back to the Game!

46. Given the following test results, which substance contains starches? Lab Bag - 200 Food Test Food AFood BFood C Iodine test Yellow-brown (no change) Greenish -yellowBlue- black Benedict’s test Light blue changed to red Light blue changed to orange. Light blue (no change)

47. Food C Back to the Game!

48. What should the student’s conclusion be for the data below? Lab Bag - 300

49. The more enzyme added to a chemical reaction, the faster it will proceed. Back to the Game!

50. In the enzyme testing laboratory, you were to determine the rate or speed of the reaction. How did you do this? Lab Bag - 500

51. by measuring the rate or speed at which oxygen gas was produced. Back to the Game!

52. Daily Double!

53. Daily Double Question In the enzyme laboratory, you investigated a particular chemical reaction. What is the balanced chemical equation for this reaction?

54. Daily Double Answer Back to the Game! 2H 2 O 2  2H 2 O + O 2