Question 1

What is the most likely reason that high fat diets contribute to weight gain and obesity?

Accepted Answer

A)  Fat provides more kcals per gram than carbohydrate or protein.
B)  Fat does not provide as much satiety as carbohydrate.
C)  The conversion of dietary fat to stored fat is very efficient.
D)  All of these contribute.

Question 2

Cholesterol is an example of a(n) :

Accepted Answer

A)  trans fatty acid.
B)  phospholipid.
C)  essential nutrient.
D)  sterol.

Question 3

The function of bile in triglyceride digestion is:

Accepted Answer

A)  to hydrolyze (split) the bond that attaches fatty acids to glycerol.
B)  to break fat into small globules.
C)  facilitate the formation of chylomicrons.
D)  to bind and transport lipids in the blood.

Question 4

A new dietary recommendation promoted to help reduce a person's risk of developing heart disease is to consume fish on a regular basis.What is the physiological basis for this recommendation?

Accepted Answer

Fish is a rich source of the omega-3 fat...

Question 5

Dietary sources of cholesterol include all of the following EXCEPT:

Accepted Answer

A)  meat.
B)  eggs.
C)  fish.
D)  peanut butter.

Question 6

A reduced fat food that contains a fat replacer consisting of millions of microscopic balls that slide over each other to give the creamy texture of fats is:

Accepted Answer

A)  a carbohydrate-based fat replacer.
B)  a protein-based fat replacer.
C)  mucilage.
D)  olestra.

Question 7

Chylomicrons:

Accepted Answer

A)  transport lipids,from the food we eat into the body.
B)  are absorbed into the lymphatic system.
C)  are formed by the intestinal mucosal cell.
D)  All of these statements are true.

Question 8

All of the following foods EXCEPT _____________help reduce LDL cholesterol and reduce the risk of heart disease.

Accepted Answer

A)  oats
B)  flaxseed
C)  nuts
D)  margarine containing partially hydrogenated vegetable oils

Question 9

Over the past 40 years,the fat intake of Americans has:

Accepted Answer

A)  significantly declined,resulting in less obesity.
B)  declined as a proportion of total kcalories consumed.
C)  declined as people tend to cook at home more frequently.
D)  risen significantly.

Question 10

Which of the following most accurately describes the chemical structure of a fatty acid?

Accepted Answer

A)  A three carbon molecule bound to nitrogen.
B)  A carbon chain bound to a phosphate group.
C)  A multiple ring structure with a sugar group attached.
D)  A chain of carbon atoms linked together by chemical bonds.

Question 11

A dietary approach that protects against heart disease is the consumption of foods high in:

Accepted Answer

A)  omega-3 fatty acids.
B)  long chain fatty acids.
C)  omega-6 fatty acids.
D)  all of these provide protection against heart disease.

Question 12

Which of the following is used as an emulsifier in foods?

Accepted Answer

A)  Lecithin
B)  Trans fatty acids
C)  Arachidonic Acid
D)  Safflower oil

Question 13

Which of the following profiles is associated with an increased risk of atherosclerosis?

Accepted Answer

A)  Total blood cholesterol in adults below 120 mg/100 mL of blood
B)  HDL cholesterol below 40 mg/100 mL of blood
C)  LDL levels between 120 and 129 mg/100 mL of blood
D)  All of these are associated with increased atherosclerosis risk.

Question 14

Eicosanoids are:

Accepted Answer

A)  hormone-like compounds.
B)  synthesized from omega-3 and omega-6 fatty acids.
C)  needed to regulate important body processes.
D)  All of these statements are true.

Question 15

Immune cells within the lining of blood vessels have _____________ receptors which mediate the uptake of oxidized LDL cholesterol.

Accepted Answer

A)  LDL
B)  scavenger
C)  foam
D)  insulin

Question 16

Consumption of all of the following tend to increase blood cholesterol EXCEPT:

Accepted Answer

A)  trans fatty acids.
B)  saturated fatty acids.
C)  monounsaturated fatty acids.
D)  dietary cholesterol.

Question 17

Which of the following lipoproteins contains the highest percentage of cholesterol?

Accepted Answer

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

Question 18

Which of the following is characteristic of atherosclerosis?

Accepted Answer

A)  Oxidation of LDL particles
B)  Inflammation of the lining of the colon
C)  High HDL levels
D)  Production of chylomicrons by cells lining the blood vessels

Question 19

The AMDR for fat intake:

Accepted Answer

A)  is constant throughout the life cycle.
B)  is highest during adolescence.
C)  is highest for 1-3 year olds.
D)  increases over the life cycle.

Question 20

Which organ produces the lipase enzyme that accomplishes the bulk of lipid digestion?

Accepted Answer

A)  Stomach
B)  Pancreas
C)  Mouth
D)  Liver

Exam 5: Lipids: Triglycerides, phospholipids, and Cholesterol

A reduced fat food that contains a fat replacer consisting of millions of microscopic balls that slide over each other to give the creamy texture of fats is:

Correct AnswerverifiedShow Answer

Which of the following lipoproteins contains the highest percentage of cholesterol?

Correct AnswerverifiedShow Answer

Cholesterol is an example of a(n) :

Correct AnswerverifiedShow Answer

Consumption of all of the following tend to increase blood cholesterol EXCEPT:

Correct AnswerverifiedShow Answer

Which of the following is characteristic of atherosclerosis?

Correct AnswerverifiedShow Answer

Immune cells within the lining of blood vessels have _____________ receptors which mediate the uptake of oxidized LDL cholesterol.

Correct AnswerverifiedShow Answer

Which organ produces the lipase enzyme that accomplishes the bulk of lipid digestion?

Correct AnswerverifiedShow Answer

What is the most likely reason that high fat diets contribute to weight gain and obesity?

Correct AnswerverifiedShow Answer

The function of bile in triglyceride digestion is:

Correct AnswerverifiedShow Answer

Dietary sources of cholesterol include all of the following EXCEPT:

Correct AnswerverifiedShow Answer

Which of the following most accurately describes the chemical structure of a fatty acid?

Correct AnswerverifiedShow Answer

All of the following foods EXCEPT _____________help reduce LDL cholesterol and reduce the risk of heart disease.

Correct AnswerverifiedShow Answer

Eicosanoids are:

Correct AnswerverifiedShow Answer

Which of the following profiles is associated with an increased risk of atherosclerosis?

Correct AnswerverifiedShow Answer

A dietary approach that protects against heart disease is the consumption of foods high in:

Correct AnswerverifiedShow Answer

The AMDR for fat intake:

Correct AnswerverifiedShow Answer

A new dietary recommendation promoted to help reduce a person's risk of developing heart disease is to consume fish on a regular basis.What is the physiological basis for this recommendation?

Correct AnswerverifiedFish is a rich source of the omega-3 fat...View AnswerShow Answer

Which of the following is used as an emulsifier in foods?

Correct AnswerverifiedShow Answer

Over the past 40 years,the fat intake of Americans has:

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Chylomicrons:

Correct AnswerverifiedShow Answer

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Fish is a rich source of the omega-3 fat...
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