Question 1

Which of the following does not describe a function of fat?

Accepted Answer

A)  Adds flavor to food
B)  Carrier of fat-soluble vitamins
C)  Best source of energy for the brain
D)  Insulates and protects the bodyE) A) and B)
F) All of the above C

Question 2

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) B) and C)
F) A) and D)

Question 3

Hydrogenation changes a fat

Accepted Answer

A)  from liquid to solid.
B)  from solid to liquid.C) A) and B)
D) undefined

Question 4

The main problem with the fat replacer olestra is that it can reduce absorption of

Accepted Answer

A)  cholesterol.
B)  fatty acids.
C)  fat-soluble vitamins.
D)  fiber.E) B) and C)
F) A) and B) C

Question 5

In adipose tissue,humans can store a nearly limitless supply of energy in the form of

Accepted Answer

A)  glycogen.
B)  triglycerides.
C)  amino acids.
D)  phospholipids.E) C) and D)
F) B) and C)

Question 6

A diglyceride consists of

Accepted Answer

A)  2 glycerols and 1 fatty acid.
B)  2 glucoses and 1 fatty acid.
C)  1 glucose and 2 fatty acids.
D)  1 glycerol and 2 fatty acids.E) B) and D)
F) B) and C)

Question 7

Olive and canola oils contain a high percentage of _____ fatty acids.

Accepted Answer

A)  omega-3
B)  saturated
C)  monounsaturated
D)  polyunsaturatedE) None of the above
F) A) and B)

Question 8

Which of the following is true about the fate of fatty acids after their absorption?

Accepted Answer

A)  Fatty acids of 16 or more carbons enter the blood and then the liver via the portal vein.
B)  Fatty acids of less than 12 carbons enter the lymphatic system packaged in chylomicrons.
C)  Fatty acids of less than 12 carbons enter the blood and then the liver via the portal vein.
D)  Fatty acids of 16 or more carbons enter the lymphatic system directly and then enter the blood via the aorta.E) None of the above
F) A) and D)

Question 9

A(n) _____ is the simplest form of lipid;it is a carbon chain,flanked by hydrogens,with an acid group at one end and a methyl group at the other end.

Accepted Answer

A)  cholesterol
B)  fatty acid
C)  glycerol
D)  triglycerideE) All of the above
F) A) and D) B

Question 10

All of the following are characteristics of cholesterol except

Accepted Answer

A)  it is used for making estrogen and testosterone.
B)  it is converted to bile.
C)  it is incorporated into cell membranes.
D)  it is an essential nutrient.E) A) and C)
F) None of the above

Question 11

Olive oil contains mostly ______ fatty acids.

Accepted Answer

A)  saturated
B)  monounsaturated
C)  polyunsaturated
D)  transE) C) and D)
F) B) and D)

Question 12

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-linoleic acid (AL
A)  
D)  Conjugated linoleic acid (CL
A)  E) A) and B)
F) B) and C)

Question 13

When a person gains weight,

Accepted Answer

A)  fat cells can increase in both size and number.
B)  the number of fat cells increases,but the size of fat cells remains the same.
C)  the size of fat cells increases,but the number of fat cells remains the same.D) A) and C)
E) All of the above

Question 14

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) A) and B)
F) A) and C)

Question 15

An omega-9 fatty acid has its first double bond starting at the ninth carbon from the

Accepted Answer

A)  acid group.
B)  alpha end.
C)  glycerol.
D)  methyl end.E) None of the above
F) All of the above

Question 16

A(n) _____ is made up of a glycerol backbone attached to three fatty acids.

Accepted Answer

A)  lipoprotein
B)  chylomicron
C)  eicosanoid
D)  triglycerideE) None of the above
F) All of the above

Question 17

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 B)
F) B) and D)

Question 18

Cholesterol is found in all of the following except

Accepted Answer

A)  corn oil.
B)  cheddar cheese.
C)  sirloin steak.
D)  butter.E) All of the above
F) B) and D)

Question 19

Palmitic acid is a 16-carbon,saturated fatty acid.Based on its chain length,palmitic acid is a

Accepted Answer

A)  short-chain fatty acid.
B)  medium-chain fatty acid.
C)  long-chain fatty acid.D) None of the above
E) All of the above

Question 20

Phospholipids differ from triglycerides in which of the following ways?

Accepted Answer

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

Exam 5: Lipids

Which of the following does not describe a function of fat?

Correct AnswerverifiedC

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

Hydrogenation changes a fat

Correct AnswerverifiedShow Answer

The main problem with the fat replacer olestra is that it can reduce absorption of

Correct AnswerverifiedC

In adipose tissue,humans can store a nearly limitless supply of energy in the form of

Correct AnswerverifiedShow Answer

A diglyceride consists of

Correct AnswerverifiedShow Answer

Olive and canola oils contain a high percentage of _____ fatty acids.

Correct AnswerverifiedShow Answer

Which of the following is true about the fate of fatty acids after their absorption?

Correct AnswerverifiedShow Answer

A(n) _____ is the simplest form of lipid;it is a carbon chain,flanked by hydrogens,with an acid group at one end and a methyl group at the other end.

Correct AnswerverifiedB

All of the following are characteristics of cholesterol except

Correct AnswerverifiedShow Answer

Olive oil contains mostly ______ fatty acids.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

When a person gains weight,

Correct AnswerverifiedShow Answer

Which of the following is true about Olestra?

Correct AnswerverifiedShow Answer

An omega-9 fatty acid has its first double bond starting at the ninth carbon from the

Correct AnswerverifiedShow Answer

A(n) _____ is made up of a glycerol backbone attached to three fatty acids.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Cholesterol is found in all of the following except

Correct AnswerverifiedShow Answer

Palmitic acid is a 16-carbon,saturated fatty acid.Based on its chain length,palmitic acid is a

Correct AnswerverifiedShow Answer

Phospholipids differ from triglycerides in which of the following ways?

Correct AnswerverifiedShow Answer

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C

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C

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B

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