BIOCHEMISTRY QUIZ LIPIDS 1 What is the major

BIOCHEMISTRY QUIZ -LIPIDS-

1 What is the major form of lipid storage in a cell? a. Ketone bodies b. Fatty acids c. Triglycerides d. Glycogen e. I dont know

2 The location of fatty acid oxidation is: a. Adipocyl membranes b. Peroxisomes c. The Golgi apparatus d. The mitochondrial matrix e. The cytoplasm of liver cells

3 Fatty acids are broken down to acetyl Co. A by. . . a. β-oxidation. b. lipogenesis. c. lipolysis. d. pyruvate dehydrogenase. e. I dont know.

4 Fatty acid oxidation occurs mostly within mitochondria, but fatty acids themselves can’t easily cross the mitochondrial membrane. How do they pass? a. Attached to alcohols b. As esters of carnitine c. As amides of glycine d. Attached to esters of alcohols e. As bile acids or salts

5 This is the first step in the reaction to form triglycerides : When these two monomers join, a. A molecule of CO 2 will be eliminated and a peptide linkage will form. b. H 2 will be eliminated and a oxygen-to-oxygen bond will form. c. A molecule of H 2 O will be eliminated and a ester linkage will form. d. A molecule of H 2 O 2 will be eliminated and a carbon-to-carbon bond will form. e. I dont know

6 This condensed structure represents a. . . a. saturated fatty acid. b. monounsaturated fatty acid. c. trans fatty acid. d. polyunsaturated fatty acid. e. I dont know

7 What is the major role of fat in our diets? a. to add fiber b. to provide energy c. to create structural material d. to synthesize hemoglobin e. I dont know

8 What kind of molecule is represented by the structure below? CH 3 CH 2 CH 2 CH=CHCH 2 CH 2 CH 2 CH 2 COOH a. a sugar b. an unsaturated fatty acid c. a saturated fatty acid d. a disaccharide e. a phospholipid

9 This condensed structure represents. . . a. an amino acid. b. a protein. c. a carbohydrate. d. a fatty acid. e. I dont know

10 Lipid bilayers are created from : a. phospholipids b. triglycerides c. fatty acids d. glycerol e. proteins

THE END

KUNCI JAWABAN 1. C 2. D 3. A 4. B 5. C 6. B 7. B 8. B 9. D 10. A