Question 1

Fatty fish, such as salmon, are rich sources of which omega-3 fatty acid?

Accepted Answer

A)   Arachidonic acid (A
A)  
B)   Eicosapentaenoic acid (EP
A)  
C)   Alpha-linolenic acid (AL
A)  
D)   Conjugated linoleic acid (CL
A)  E) A) and C)
F) B) and D)

Question 2

Plant sterols

Accepted Answer

A)   reduce cholesterol absorption in the small intestine and lower its return to the liver.
B)   increase the absorption of dietary fiber from the small intestine.
C)   decrease the ability of cholesterol to bind to artery walls.
D)   decrease trans fat formation in fried foods.E) A) and B)
F) A) and C)

Question 3

The Dietary Guidelines for Americans recommend getting no more than ________ % of your total calories from fat.

Accepted Answer

A)   20
B)   25
C)   30
D)   35E) B) and C)
F) A) and B)

Question 4

Match each of the following terms with its description.
-Cis fatty acid

Accepted Answer

A)  An unsaturated fatty acid with its first carbon-carbon double bond at the third carbon atom from the methyl end
B)  An unsaturated fatty acid with its first carbon-carbon double bond at the sixth carbon atom from the methyl end
C)  Fatty acid with two or more carbon-carbon double bonds
D)  Fatty acid with no carbon-carbon double bonds
E)  Three fatty acids attached to a glycerol backboneF) Two fatty acids attached to a glycerol backboneG) Fatty acid with one carbon-carbon double bondH) One fatty acid attached to a glycerol backboneI) Unsaturated fatty acid with hydrogen atoms on opposite sides of a carbon-carbon double bondJ) Unsaturated fatty acid with hydrogen atoms on the same side of a carbon-carbon double bondK) G) and I)
L) G) and H)

Question 5

Hydrogenation produces ________ in food products.

Accepted Answer

A)   high-density lipoproteins
B)   cholesterol
C)   low-density lipoproteins
D)   trans fatty acidsE) None of the above
F) A) and C)

Question 6

Butter contains mostly ________ fatty acids.

Accepted Answer

A)   saturated
B)   trans
C)   monounsaturated
D)   polyunsaturatedE) B) and D)
F) B) and C)

Question 7

During rest and light activities, ________ are the main fuel for muscles.

Accepted Answer

A)   fatty acids
B)   amino acids
C)   phospholipids
D)   monosaccharidesE) A) and C)
F) None of the above

Question 8

Which of the following is true about the use of medications that lower blood cholesterol levels?

Accepted Answer

A)   They often are helpful for persons who have had a heart attack or have cardiovascular disease or diabetes.
B)   They should be used by anyone with a high blood cholesterol level.
C)   They have few side effects.
D)   When one takes these, dietary changes are not necessary.E) A) and B)
F) None of the above A

Question 9

A monounsaturated fatty acid contains

Accepted Answer

A)   no double bonds.
B)   one double bond.
C)   2 to 12 double bonds.
D)   14 to 24 double bonds.E) All of the above
F) None of the above

Question 10

________ is sometimes called the "bad" cholesterol because higher levels of this lipoprotein are associated with increased risk for cardiovascular disease.

Accepted Answer

A)   LDL
B)   HDLC) A) and B)
D) undefined A

Question 11

According to the Food and Nutrition Board, what is the upper limit of fat (in grams)  that should be consumed by a healthy person requiring 2,000 kilocalories per day?

Accepted Answer

A)   44
B)   78
C)   30
D)   93E) A) and D)
F) All of the above B

Question 12

The major fat-digesting enzyme is

Accepted Answer

A)   amylase.
B)   pepsin.
C)   trypsin.
D)   lipase.E) None of the above
F) A) and D)

Question 13

Phospholipids differ from triglycerides in which of the following ways?

Accepted Answer

A)   A compound containing phosphorus replaces one fatty acid.
B)   Phospholipids do not contain glycerol.
C)   Phospholipids do not contain fatty acids.
D)   A compound containing nitrogen replaces one fatty acid.E) B) and C)
F) A) and D)

Question 14

When chyme is in the small intestine, the pancreas secretes ________ to digest triglycerides.

Accepted Answer

A)   chylomicrons
B)   lipase
C)   bicarbonate
D)   insulinE) A) and B)
F) A) and C)

Question 15

Most lipids are composed of

Accepted Answer

A)   carbon, hydrogen, and oxygen.
B)   carbon, hydrogen, oxygen, and nitrogen.
C)   carbon, hydrogen, nitrogen, and phosphorus.
D)   calcium, phosphorus, and oxygen.E) B) and D)
F) B) and C)

Question 16

Which of the following is true about Olestra?

Accepted Answer

A)   It is not approved for use by the FDA.
B)   It does provide kilocalories but not as many as fat provides.
C)   It cannot be digested; therefore, it is excreted in feces.
D)   It cannot be used for frying.E) B) and C)
F) None of the above

Question 17

Match each of the following terms with its description.
-LDL

Accepted Answer

A)  Lipoprotein that picks up cholesterol from dying cells and other sources and transfers it to other lipoproteins, as well as directly to the liver
B)  Lipoprotein that carries cholesterol and lipids newly synthesized by the liver
C)  Lipoprotein made in the intestine after fat absorption
D)  Product of VLDL metabolism that contains primarily cholesterolE) None of the above
F) B) and D)

Question 18

The process of ________ changes the double bonds in unsaturated fatty acids into single bonds, giving the fat a more solid consistency.

Accepted Answer

A)   emulsification
B)   elongation
C)   saponification
D)   hydrogenationE) All of the above
F) None of the above

Question 19

________ are lipid-loaded white blood cells that form plaque in blood vessels.

Accepted Answer

A)   Lymphocytes
B)   Neutrophils
C)   Foam cells
D)   LiposomesE) A) and B)
F) A) and C)

Question 20

We need to consume only about 5% of our total calories per day from essential fatty acids. This corresponds to about ________ of plant oil each day.

Accepted Answer

A)   2 to 4 teaspoons
B)   2 to 4 tablespoons
C)   1/4 to 1/2 cup
D)   3/4 to 1 cupE) All of the above
F) A) and C)

Exam 5: Lipids

Fatty fish, such as salmon, are rich sources of which omega-3 fatty acid?

Correct AnswerverifiedShow Answer

Plant sterols

Correct AnswerverifiedShow Answer

The Dietary Guidelines for Americans recommend getting no more than ________ % of your total calories from fat.

Correct AnswerverifiedShow Answer

Match each of the following terms with its description. -Cis fatty acid

Correct AnswerverifiedShow Answer

Hydrogenation produces ________ in food products.

Correct AnswerverifiedShow Answer

Butter contains mostly ________ fatty acids.

Correct AnswerverifiedShow Answer

During rest and light activities, ________ are the main fuel for muscles.

Correct AnswerverifiedShow Answer

Which of the following is true about the use of medications that lower blood cholesterol levels?

Correct AnswerverifiedA

A monounsaturated fatty acid contains

Correct AnswerverifiedShow Answer

________ is sometimes called the "bad" cholesterol because higher levels of this lipoprotein are associated with increased risk for cardiovascular disease.

Correct AnswerverifiedA

According to the Food and Nutrition Board, what is the upper limit of fat (in grams) that should be consumed by a healthy person requiring 2,000 kilocalories per day?

Correct AnswerverifiedB

The major fat-digesting enzyme is

Correct AnswerverifiedShow Answer

Phospholipids differ from triglycerides in which of the following ways?

Correct AnswerverifiedShow Answer

When chyme is in the small intestine, the pancreas secretes ________ to digest triglycerides.

Correct AnswerverifiedShow Answer

Most lipids are composed of

Correct AnswerverifiedShow Answer

Which of the following is true about Olestra?

Correct AnswerverifiedShow Answer

Match each of the following terms with its description. -LDL

Correct AnswerverifiedShow Answer

The process of ________ changes the double bonds in unsaturated fatty acids into single bonds, giving the fat a more solid consistency.

Correct AnswerverifiedShow Answer

________ are lipid-loaded white blood cells that form plaque in blood vessels.

Correct AnswerverifiedShow Answer

We need to consume only about 5% of our total calories per day from essential fatty acids. This corresponds to about ________ of plant oil each day.

Correct AnswerverifiedShow Answer

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