Question 1

Lecithin is a(n)

Accepted Answer

A)   phospholipid.
B)   fatty acid.
C)   sterol.
D)   eicosanoid.E) B) and D)
F) None of the above

Question 2

Studies of the Greenlandic Inuit population have demonstrated a relationship between the consumption of fish and the risk for heart disease. What is the most likely mechanism for the reduction of heart disease risk when fish is consumed?

Accepted Answer

A)   The protein in fish lowers the blood cholesterol.
B)   Fish is low in cholesterol.
C)   Fish supplies fatty acids that decrease blood clotting.
D)   The carbohydrate in fish lowers blood cholesterol.E) A) and B)
F) C) and D)

Question 3

Examine the Nutrition Facts panel for pita chips.  Fat provides ________% of the total calories in pita chips.

Accepted Answer

A)   35
B)   3
C)   15
D)   6E) C) and D)
F) B) and D)

Question 4

Triglycerides are composed of

Accepted Answer

A)   glycogen and fatty acids.
B)   fatty acids and glycerol.
C)   lactic acid and glycogen.
D)   glucose and fatty acids.E) A) and B)
F) A) and C)

Question 5

Triglycerides in food are said to have satiety value primarily because they

Accepted Answer

A)   are high in calories.
B)   are readily stored in adipose tissue.
C)   provide bulk in foods.
D)   require bile to be digested.E) A) and B)
F) A) and C)

Question 6

________ are synthesized by the liver to transport fat to the rest of the body.

Accepted Answer

A)   Chylomicrons
B)   Low-density lipoproteins
C)   Very-low-density lipoproteins
D)   High-density lipoproteinsE) A) and C)
F) C) and D)

Question 7

Match each of the following terms with its description.
-Polyunsaturated 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) C) and I)
L) A) and J)

Question 8

After chylomicrons leave the intestinal cells, they are transported via what system?

Accepted Answer

A)   Vascular
B)   Lymphatic
C)   Capillary
D)   VenousE) A) and D)
F) None of the above

Question 9

Which of the following contains the greatest percentage of calories from fat?

Accepted Answer

A)   T-Bone steak
B)   Margarine
C)   Whole milk
D)   M&M candiesE) A) and B)
F) A) and C)

Question 10

The major dietary factor to be concerned about in relation to heart disease is

Accepted Answer

A)   cholesterol.
B)   protein.
C)   total fat.
D)   saturated fat.E) A) and B)
F) B) and D)

Question 11

Examine the Nutrition Facts panel for pita chips.  One serving of pita chips provides ______% of the Daily Value for fat.

Accepted Answer

A)   6
B)   4
C)   10
D)   <1E) A) and B)
F) B) and D)

Question 12

The liver secretes ________ to emulsify fats in the chyme in the small intestine.

Accepted Answer

A)   bile
B)   bicarbonate
C)   lipase
D)   hydrochloric acidE) All of the above
F) None of the above

Question 13

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

Accepted Answer

A)   HDL
B)   LDLC) A) and B)
D) undefined

Question 14

A ________ fatty acid has one double bond.

Accepted Answer

A)   saturated
B)   hydrogenated
C)   monounsaturated
D)   polyunsaturatedE) B) and C)
F) None of the above

Question 15

________ are lipoproteins made of dietary fat surrounded by a shell of cholesterol, phospholipids, and protein; their role is to transport fat that has been absorbed from the GI tract.

Accepted Answer

A)   Chylomicrons
B)   Very-low-density lipoproteins
C)   Low-density lipoproteins
D)   High-density lipoproteinsE) A) and D)
F) B) and C)

Question 16

Consumption of fatty fish at least twice a week is recommended to provide omega-3 fatty acids. However, some fish-especially swordfish, shark, king mackerel, and tile fish-can be a source of ________, which is toxic in high amounts.

Accepted Answer

A)   vitamin A
B)   arsenic
C)   fluoride
D)   mercuryE) A) and C)
F) A) and B)

Question 17

Match each of the following terms with its description.
-Saturated 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 J)
L) B) and C)

Question 18

________ refers to the breakdown of fatty acids upon exposure to light, oxygen, or heat. This breakdown of fatty acids may cause disagreeable flavors and odors in food products.

Accepted Answer

A)   Rancidity
B)   Hydrogenation
C)   Emulsification
D)   DesaturationE) All of the above
F) C) and D)

Question 19

Examine the Nutrition Facts panel for pita chips.  Saturated fat provides ________% of total calories in pita chips.

Accepted Answer

A)   3
B)   4
C)   35
D)   <1E) B) and D)
F) B) and C)

Question 20

All of the following are characteristics of cholesterol except

Accepted Answer

A)   it is used for making estrogen and testosterone.
B)   it is a component of bile.
C)   it is incorporated into cell membranes.
D)   it is an essential nutrient.E) All of the above
F) A) and D)

Exam 5: Lipids

Triglycerides are composed of

Correct AnswerverifiedShow Answer

Lecithin is a(n)

Correct AnswerverifiedShow Answer

Examine the Nutrition Facts panel for pita chips. Saturated fat provides ________% of total calories in pita chips.

Correct AnswerverifiedShow Answer

After chylomicrons leave the intestinal cells, they are transported via what system?

Correct AnswerverifiedShow Answer

The liver secretes ________ to emulsify fats in the chyme in the small intestine.

Correct AnswerverifiedShow Answer

Studies of the Greenlandic Inuit population have demonstrated a relationship between the consumption of fish and the risk for heart disease. What is the most likely mechanism for the reduction of heart disease risk when fish is consumed?

Correct AnswerverifiedShow Answer

All of the following are characteristics of cholesterol except

Correct AnswerverifiedShow Answer

________ are synthesized by the liver to transport fat to the rest of the body.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A ________ fatty acid has one double bond.

Correct AnswerverifiedShow Answer

The major dietary factor to be concerned about in relation to heart disease is

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

________ are lipoproteins made of dietary fat surrounded by a shell of cholesterol, phospholipids, and protein; their role is to transport fat that has been absorbed from the GI tract.

Correct AnswerverifiedShow Answer

Consumption of fatty fish at least twice a week is recommended to provide omega-3 fatty acids. However, some fish-especially swordfish, shark, king mackerel, and tile fish-can be a source of ________, which is toxic in high amounts.

Correct AnswerverifiedShow Answer

Examine the Nutrition Facts panel for pita chips. One serving of pita chips provides ______% of the Daily Value for fat.

Correct AnswerverifiedShow Answer

Which of the following contains the greatest percentage of calories from fat?

Correct AnswerverifiedShow Answer

Examine the Nutrition Facts panel for pita chips. Fat provides ________% of the total calories in pita chips.

Correct AnswerverifiedShow Answer

________ refers to the breakdown of fatty acids upon exposure to light, oxygen, or heat. This breakdown of fatty acids may cause disagreeable flavors and odors in food products.

Correct AnswerverifiedShow Answer

Triglycerides in food are said to have satiety value primarily because they

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified