1. I am useful for a fast source of energy.

6. A mutation in DNA would initially start with me. 7. I make up cell membranes.

8. Enzymes,which can speed up reactions, belong in my category.

10. I containelements C, H, and O and have a ring-like structure.

11. My category includes genetic material.

9. I amimportant for insulation.

12. I cancontain long fatty acid chains.

Name: _______________________________________________ Date: ________________________ Period: ____

(biochemical molecules) biomolecules (macromolecules)

(the molecules of Life) Directions: For each statement, write a “C” if it best applies to the carbohydrates, “L” if it best applies to lipids, “P” if it best applies to proteins, or “N” if it best applies to nucleic acids.

2. I have involvement in the immune system (ex: antibodies).

3. I am helpful for long term energy storage.

4. I have a large role in muscle development.

5. If athletes “pasta load,” they consume a lot of me.

AMOEBA SISTERS: VIDEO RECAP BIOMOLECULES

Directions: The following table is designed to help you organize your knowledge about biomolecules. Some of the information has been filled in for you.

Biomolecule Elements Functions Examples Monomer Sketch

Carbohydrate

13. 14. 15. 16. 17.

Lipid

18. 19. 20. Glycerol +Fatty Acid

Many do not consider lipids to have true

monomers.

21.

Protein

22. 23. 24. 25. 26.

Nucleic Acid

27. 28. 29. 30. 31.

Name the monomer for each polymer.32. _____________________________33. _____________________________34. _____________________________35. _____________________________

38. The plasma membrane (cell membrane or phospholipid bilayer) is composed of three of the four biomolecules. Identify each letter as a carbohydrate, protein, or lipid.

________________________

________________________

________________________

________________________

________________________

________________________

39. Which biomolecule is structurally important to the cell membrane as it comprises the bilayer? _______________________

40. What is (are) the name(s) of the reaction that forms this polymer? _____________________________________________

Circle the correct answer for each multiple choice question.34. Lipase, maltase, and protease are members of a group of catalysts known as-

a) Enzymesb) Hormonesc) Carbohydratesd) Fats

35. Which compound is a polysaccharide?a) glucoseb) maltase c) ribosed) starch

36. The enzyme salivary amylase will act on starch, but not on protein. This action illustrates that salivary amylase

a) contains starch b) is not reusablec) is chemically specificd) lacks protein

37. Hydrogen peroxide (H2O2) is a toxic byproduct of cellular metabolism in aerobic organisms. The reaction occurs within the cells to prevent the accumulation of hydrogen peroxide. In this reaction, catalase functions as an-

a) enzyme in the breakdown of hydrogen peroxideb) enzyme in the synthesis of hydrogen peroxidec) emulsifier in the digestion of hydrogen peroxided) indicator in the detection of hydrogen peroxide

AMOEBA SISTERS: VIDEO RECAP BIOMOLECULES

41. How many water molecules had to enter or leave to form the polymer? ________ H2O added / removed (circle one)

42. What is the monomer of this polymer? ____________________________________________________________________

43. What is (are) the name(s) of the reaction shown below? ______________________________________________________

44. The reaction above is catalyzed by a(n) ________________________ which is a special type of ______________________.45. Label the molecules in each part of the reaction above.

I. ____________________________ + _________substrate ___________

II. _______________________________________

III. ____________________________ + ____________________________

Use the Enzyme Energy Graph to the right to answer the following questions.46. Highlight or label the line that shows a reaction in the

presence of an enzyme.47. Correctly label A on the graph.

48. Correctly label B on the graph.49. Name 2 ways enzyme activity can decrease.

___________________________________

___________________________________

50. How do enzymes speed up reactions in the body?

H2OI II III

Ab