BIOCHEMISTRY QUIZ-LIPIDS-

1

What is the major form of lipid storage in a cell? a. Ketone bodiesb. Fatty acidsc. Triglyceridesd. Glycogene. 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 CoA 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 CO2 will be eliminated and a peptide linkage will form.b. H2 will be eliminated and a oxygen-to-oxygen bond will form.c. A molecule of H2O will be eliminated and a ester linkage will form.d. A molecule of H2O2 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 fiberb. to provide energyc. to create structural materiald. to synthesize hemoglobine. I dont know

8

What kind of molecule is represented by the structure below?

CH3CH2CH2CH2CH=CHCH2CH2CH2CH2CH2CH2CH2COOH

a. a sugarb. an unsaturated fatty acidc. a saturated fatty acidd. a disaccharidee. 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. phospholipidsb. triglyceridesc. fatty acidsd. glycerole. proteins

THE END

KUNCI JAWABAN

1. C2. D3. A4. B5. C6. B7. B8. B9. D10. A