WRITE THE LETTER OF THE CORRECT ANSWER 16.

What phospholipid is composed of glyceryl esters of fatty

1. The following are essential fatty acids EXCEPT: acids and phosphoric acid?
A. linolenic acid C. arachidonic acid A. phosphatidic acid
B. linoleic acid D. Oleic acid B. spingolipids
C. phosphatidyl cholines
2. The following are classifications of lipids EXCEPT: D. phosphatidyl ethanolamines
A. bile C. waxes
B. steroids D. fatty acids 17. The fluid mosaic model of a biological membrane has
A. a hydrophilic interior
3. Predict the best product of lipid hydrolysis. B. no cholesterol in the lipid bilayer
A. saturated fatty acids, unsaturated fatty acids & water C. a hydrophobic exterior
B. saturated fatty acid, unsaturated fatty acid & glycol D. a hydrophobic interior
C. carboxylic acid, esters, water and glycerol
D. saturated fatty acid, unsaturated fatty acid, and 18. Which of the following classes of lipids is the most
glycerol hydrophobic?
A. phospholipids C. wax
4. Choose the matter that does not contain a lipid. B. sphingolipids D. glycolipids
A. salmon C. egg
B. cornstarch D. apple 19. Which of the following classes has an amide bond?
A. triacylglycerol C. phospholipids
5. Lipids that is extremely water insoluble and serves a B. sphingolipids D. wax
protective function for leaves, feathers, fur, and fruits, etc
A. oils C. waxes 20. What is the parent steroid compound that is a precursor
B. fats D. none of the above for steroid hormones and bile acids?
A. cholesterol C. cholic acid
6. Storage lipids abundant under the skin, abdominal cavity B. estradiol D. cortisone
and mammary glands.
A. oils C. waxes 21. What steroid is the male sex hormone?
B. fats D. none of the above A. progesterone C. ergosterol
B. estradiol D. testosterone
7. Choose the solvent that can best extract lipids from cells.
A. water C. hexane 22. What steroid is the bile acid?
B. Muriatic acid D. acetic acid A. cholic acid C. progesterone
B. estradiol D. cortisone
8. Neutral fats containing large amount of unsaturated fatty
acids and are liquid at room temperature. 23. The lipoprotein that acts as a “cholesterol scavenger” is
A. safflower oil C. bees wax abbreviated as ____.
B. lard D. butter A. HDL C. VLDL
B. LDL D. MLDL
9. Which lipid contains the greatest polyunsaturated fatty
acids. 24. A metabolic disease that leads to deposits of cholesterol
A. peanuts C. pink salmon and other lipids on the inner walls of the arteries.
B. olive oil D. coconut oil A. lipoglycemia C. artheriosclerosis
B. atherosclerosis D. hypertension
10. Condition when fats are exposed to air and it becomes
acidic. 25. An omega-6 fatty acid
A. acidity C. aeration A. linolenic acid C. arachidonic acid
B. rancidity D. saponification B. linoleic acid D. Oleic acid

11. What compound or product is formed when oils are 26. Soap can be produced by the reaction of a fatty acid with
converted to solid fats? an inorganic base. Detect the correct chemical
A. margarine C. lard mechanism in the theoretical production of soap.
B. butter D. peanut butter A. C17H35COOH + CH3CH2OH  C17H35COOCH2CH3 + H2O
B. C17H35COOH + CH3CH2NO2  C17H35COOCH2CH3 + NO2
12. Which part of a soap micelle enables oils/fats to become C. C17H35COOH + NaOH  C17H35COONa + H2O
soluble in water? D. C17H35COOH + NaNO3  C17H35COONa + NO2
A. hydrophobic portion
B. both hydrophobic and hydrophilic portion 27. Which statement is NOT true?
C. hydrophilic portion A. Lipids are found in cell membranes
D. none of the above B. Lipids are soluble in organic solvents
C. Some hormones are lipids
13. The following are compound lipids EXCEPT: D. All lipids contain fatty acids
A. glycolipids C. sphingolipids
B. phospholipids D. aminolipids 28. Which of the following is NOT a function of lipids in the
human body?
14. What is the compound lipid class that contains a A. energy storage C. insulation
carbohydrate? B. protection D. pH regulation
A. phospholipids C. triacylglycerol
B. wax D. glycolipids 29. Which of the following lipids will give a single molecules of
fatty acid when hydrolyzed?
15. What is the synonym or commercial product name for A. wax C. fat
phosphatidyl choline? B. glycolipid D. cholesterol
A. cephalin C. cortisol
B. lecithin D. eicosanoids
30. Which compound below is a polyunsaturated fatty acid? 33. Which of the following fatty acid has the lowest melting
point?
A. myristic C. oleic
B. palmitic D. stearic
A.
34. Which reaction process converts commercial liquid
B. vegetable oils to solid fats such as margarine?
A.hydrogenation C. hydrolysis
C. B. oxidation D. saponification

35. What product(s) is obtained from the complete

hydrogenation of glyceryl trioleate?
D. A. Glycerol and 3 oleic acids C. Glyceryltristearate
B. Glycerol and 3 stearic acids D. none of these
31. What is the hydrogenation product of
glyceryltripalmitoleate shown below? 36. What phospholipid contains fatty acids but NOT glycerol?
A. lecithin C. glycolipid
O C. sphingolipid D. cephalin
CH2 O C (CH2)5CH CH(CH2)7CH3
37. What type of lipid is the compound below?
O
CH O C (CH2)5CH CH(CH2)7CH3
O
CH2 O C (CH2)5CH CH(CH2)7CH3
A.

A. sphingolipid C. bile salt

B. prostaglandin D. steroid

B. 38. What type of lipid is the compound below?

O
CH2 O C (CH2)14CH3
O
CH O C (CH2)14CH3
O
CH2 O C (CH2)14CH3

C.
A. sphingolipid C. bile salt
B. prostaglandin D. steroid

39. What type of genetic disease indicates the accumulation

of a GM2 ganglioside deposits in the macula, retina, brain and
spleen which interferes with the function of the cells causing
MENTAL DEFECTS AND NEUROLOGIC manifestations?
A. Tay Sach C. Niemann-Pick
B. Gaucher D. Fabry
D.
40. Which of the following fatty acids is/are most likely to be
32. Which of the following fatty acids is most likely to be solid
liquid at room temperature?
at room temperature?

A.
A.

B.
B.

C.
C.

D.
D.

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