Question 1

Which of the following is an example of enterohepatic circulation?

Accepted Answer

A)  Chylomicron conversion to LDLs and HDLs
B)  Recycling of bile from the intestine to the liver
C)  Hormonal control of pancreatic digestive secretions
D)  Liver secretion of eicosanoids that promote absorption of eicosanoid precursorsE) B) and D)
F) A) and D)

Question 2

In the process of fat hydrogenation,hydrogen atoms are added to which part of the molecule?

Accepted Answer

A)  Oxygen
B)  Carbon
C)  Glycerol
D)  Other hydrogensE) A) and D)
F) A) and C)

Question 3

Your aunt Gladys has a family history of heart disease.She decides to begin eating a bowl of oatmeal every morning to help lower her blood cholesterol.After about a month of following this routine,her cholesterol declined about 5 points.Which of the following is the most likely explanation for this effect?

Accepted Answer

A)  Oatmeal is a low-fat food and inhibits the body's synthesis of cholesterol
B)  Oatmeal is high in complex fibers that inhibit cholesterol-synthesizing enzymes
C)  Oatmeal consumed on a regular basis suppresses the craving for high-cholesterol foods
D)  Oatmeal is high in soluble fibers that trap bile,causing the body to use more cholesterol for bile replacementE) A) and C)
F) B) and C)

Question 4

Which of the following contains the least cholesterol per serving?

Accepted Answer

A)  Steamed fish
B)  Steamed corn
C)  Broiled chicken
D)  Very lean grilled steakE) All of the above
F) A) and B)

Question 5

What are the precursors for synthesis of the eicosanoids?

Accepted Answer

A)  Steroids
B)  Short-chain fatty acids
C)  Medium-chain saturated fatty acids
D)  Long-chain polyunsaturated fatty acidsE) B) and D)
F) C) and D)

Question 6

Which of the following structural features of fatty acids determines their susceptibility to spoilage by oxygen?

Accepted Answer

A)  Chain length
B)  Number of double bonds
C)  Position of first saturated bond
D)  Size of adjacent fatty acids on the triglyceride moleculeE) B) and C)
F) All of the above

Question 7

Which of the following is a feature of adipose cell lipoprotein lipase?

Accepted Answer

A)  The enzyme's activity is reduced by high-fat diets
B)  The enzyme's activity is increased by signals from epinephrine and glucagon
C)  The enzyme works to promote uptake of circulating triglycerides into storage triglycerides
D)  The enzyme is involved in release of free fatty acids from stored triglyceride into the bloodstreamE) A) and B)
F) A) and C)

Question 8

Which of the following is a factor that determines the hardness of a fat at a given temperature?

Accepted Answer

A)  Origin of the fat
B)  Degree of saturation
C)  Number of acid groups
D)  Number of oxygen atomsE) A) and B)
F) C) and D)

Question 9

Oil that is partially hydrogenated sometimes changes one or more of its double bond configurations from

Accepted Answer

A)  cis to trans.
B)  solid to liquid.
C)  covalent to ionic.
D)  saturated to unsaturated.E) B) and D)
F) None of the above

Question 10

What lipoprotein is largest in size?

Accepted Answer

A)  Chylomicron
B)  High-density lipoprotein
C)  Low-density lipoprotein
D)  Very-low-density lipoproteinE) A) and B)
F) A) and D)

Question 11

What is the highest blood triglyceride concentration (mg/dL) that falls within the desirable range?

Accepted Answer

A)  99
B)  149
C)  199
D)  299E) B) and C)
F) None of the above

Question 12

Which of the following describes a fatty acid that has one double bond?

Accepted Answer

A)  Saturated
B)  Hydrogenated
C)  Monounsaturated
D)  PolyunsaturatedE) B) and D)
F) All of the above

Question 13

Which of the following characteristics are shared by cholesterol and lecithin?

Accepted Answer

A)  Both are sterols
B)  Both are phospholipids
C)  Both are synthesized in the body
D)  Both are essential dietary nutrientsE) B) and C)
F) A) and D)

Question 14

Your roommate Jeff wishes to switch from using corn oil to using one that is a good source of omega-3 fats.Which of the following should be recommended?

Accepted Answer

A)  Corn oil
B)  Canola oil
C)  Safflower oil
D)  Liquefied lardE) A) and B)
F) B) and D)

Question 15

Which of the following is a feature of butter and margarine?

Accepted Answer

A)  Butter is a major source of trans fatty acids
B)  Butter contains more saturated fat and cholesterol than margarine does
C)  Margarine contains approximately half as much cholesterol as butter does
D)  Stick margarine contains half as much trans-fatty acids as soft margarine doesE) C) and D)
F) None of the above

Question 16

Which of the following is a common dietary saturated fatty acid?

Accepted Answer

A)  Oleic acid
B)  Stearic acid
C)  Linolenic acid
D)  Arachidonic acidE) None of the above
F) All of the above

Question 17

Surveys show that U.S.adults' average intake of fat as a percentage of total energy intake is

Accepted Answer

A)  20.
B)  27.
C)  34.
D)  55.E) All of the above
F) B) and C)

Question 18

Which of the following sources would yield the softest lipids at room temperature?

Accepted Answer

A)  Lard
B)  Beef
C)  Pork
D)  SafflowerE) A) and D)
F) A) and C)

Question 19

A lacto-ovo vegetarian wishing to ensure a liberal intake of linolenic acid should consume

Accepted Answer

A)  eggs and milk.
B)  canola oil and walnuts.
C)  safflower oil margarine.
D)  corn oil and sunflower oil.E) C) and D)
F) None of the above

Question 20

Which of the following CANNOT be found in plants?

Accepted Answer

A)  Cholesterol
B)  Triglycerides
C)  Essential fatty acids
D)  Nonessential fatty acidsE) None of the above
F) All of the above

Exam 5: The Lipids: Triglycerides, phospholipids, and Sterols

Which of the following CANNOT be found in plants?

Correct Answer
verified

Oil that is partially hydrogenated sometimes changes one or more of its double bond configurations from

Correct Answer
verified

Which of the following is a factor that determines the hardness of a fat at a given temperature?

Correct Answer
verified

Which of the following is a feature of butter and margarine?

Correct Answer
verified

A lacto-ovo vegetarian wishing to ensure a liberal intake of linolenic acid should consume

Correct Answer
verified

In the process of fat hydrogenation,hydrogen atoms are added to which part of the molecule?

Correct Answer
verified

Surveys show that U.S.adults' average intake of fat as a percentage of total energy intake is

Correct Answer
verified

Your roommate Jeff wishes to switch from using corn oil to using one that is a good source of omega-3 fats.Which of the following should be recommended?

Correct Answer
verified

Which of the following describes a fatty acid that has one double bond?

Correct Answer
verified

What lipoprotein is largest in size?

Correct Answer
verified

Which of the following characteristics are shared by cholesterol and lecithin?

Correct Answer
verified

Which of the following structural features of fatty acids determines their susceptibility to spoilage by oxygen?

Correct Answer
verified

What is the highest blood triglyceride concentration (mg/dL) that falls within the desirable range?

Correct Answer
verified

Which of the following contains the least cholesterol per serving?

Correct Answer
verified

What are the precursors for synthesis of the eicosanoids?

Correct Answer
verified

Which of the following sources would yield the softest lipids at room temperature?

Correct Answer
verified

Which of the following is a feature of adipose cell lipoprotein lipase?

Correct Answer
verified

Which of the following is a common dietary saturated fatty acid?

Correct Answer
verified

Correct Answer
verified

Which of the following is an example of enterohepatic circulation?

Correct Answer
verified

Exam 5: The Lipids: Triglycerides, phospholipids, and Sterols

Which of the following CANNOT be found in plants?

Correct AnswerverifiedShow Answer

Oil that is partially hydrogenated sometimes changes one or more of its double bond configurations from

Correct AnswerverifiedShow Answer

Which of the following is a factor that determines the hardness of a fat at a given temperature?

Correct AnswerverifiedShow Answer

Which of the following is a feature of butter and margarine?

Correct AnswerverifiedShow Answer

A lacto-ovo vegetarian wishing to ensure a liberal intake of linolenic acid should consume

Correct AnswerverifiedShow Answer

In the process of fat hydrogenation,hydrogen atoms are added to which part of the molecule?

Correct AnswerverifiedShow Answer

Surveys show that U.S.adults' average intake of fat as a percentage of total energy intake is

Correct AnswerverifiedShow Answer

Your roommate Jeff wishes to switch from using corn oil to using one that is a good source of omega-3 fats.Which of the following should be recommended?

Correct AnswerverifiedShow Answer

Which of the following describes a fatty acid that has one double bond?

Correct AnswerverifiedShow Answer

What lipoprotein is largest in size?

Correct AnswerverifiedShow Answer

Which of the following characteristics are shared by cholesterol and lecithin?

Correct AnswerverifiedShow Answer

Which of the following structural features of fatty acids determines their susceptibility to spoilage by oxygen?

Correct AnswerverifiedShow Answer

What is the highest blood triglyceride concentration (mg/dL) that falls within the desirable range?

Correct AnswerverifiedShow Answer

Which of the following contains the least cholesterol per serving?

Correct AnswerverifiedShow Answer

What are the precursors for synthesis of the eicosanoids?

Correct AnswerverifiedShow Answer

Which of the following sources would yield the softest lipids at room temperature?

Correct AnswerverifiedShow Answer

Which of the following is a feature of adipose cell lipoprotein lipase?

Correct AnswerverifiedShow Answer

Which of the following is a common dietary saturated fatty acid?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which of the following is an example of enterohepatic circulation?

Correct AnswerverifiedShow Answer

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