Question 1

Bile salts are best described as which of the following?

Accepted Answer

A)  detergents 
B)  lachrymators 
C)  oxidizing agents 
D)  none of these 
A)  detergents 
B)  lachrymators 
C)  oxidizing agents 
D)  none of these

Question 2

Which components of a sphingolipid are collectively known as a ceramide?

Accepted Answer

A)  the fatty acid and phosphate 
B)  the fatty acid and sphingosine 
C)  phosphate and choline 
D)  phosphate and sphingosine 
A)  the fatty acid and phosphate 
B)  the fatty acid and sphingosine 
C)  phosphate and choline 
D)  phosphate and sphingosine

Question 3

Which of the following is contains free cholesterol?

Accepted Answer

A)  HDL 
B)  gallstones 
C)  LDL 
D)  all of these 
A)  HDL 
B)  gallstones 
C)  LDL 
D)  all of these

Question 4

Gaucher's disease is associated with which of the following?

Accepted Answer

A)  the inability of synthesize glucocerebrosides 
B)  the inability to store sufficient glucocerebrosides 
C)  an over accumulation of glucocerebrosides 
D)  any of the above, depending on the patient 
A)  the inability of synthesize glucocerebrosides 
B)  the inability to store sufficient glucocerebrosides 
C)  an over accumulation of glucocerebrosides 
D)  any of the above, depending on the patient

Question 5

Which of the following will most directly result in an increase in the amount of cholesterol synthesized in the liver?

Accepted Answer

A)  the cholesterol level inside cells 
B)  the cholesterol level in blood serum 
C)  the ratio of HDL to LDL 
D)  all of these are equally important 
A)  the cholesterol level inside cells 
B)  the cholesterol level in blood serum 
C)  the ratio of HDL to LDL 
D)  all of these are equally important

Question 6

What is the effect of administering cortisol to a patient?

Accepted Answer

A)  Both glucose and glycogen concentrations decrease. 
B)  Both glucose and glycogen concentrations increase. 
C)  Glucose concentration decreases but glycogen concentration increases. 
D)  Glucose concentration increases but glycogen concentration decreases. 
A)  Both glucose and glycogen concentrations decrease. 
B)  Both glucose and glycogen concentrations increase. 
C)  Glucose concentration decreases but glycogen concentration increases. 
D)  Glucose concentration increases but glycogen concentration decreases.

Question 7

Which of the following is found in glycolipids but not in other complex lipids?

Accepted Answer

A)  a carbohydrate 
B)  a fatty acid 
C)  sphingosine 
D)  None, all these are found in both types of lipids. 
A)  a carbohydrate 
B)  a fatty acid 
C)  sphingosine 
D)  None, all these are found in both types of lipids.

Question 8

Which of the following linkages is found in sphingolipids?

Accepted Answer

A)  sphingosine−choline−phosphate 
B)  sphingosine−phosphate−choline 
C)  phosphate−sphingosine−choline 
D)  none of the above 
A)  sphingosine−choline−phosphate 
B)  sphingosine−phosphate−choline 
C)  phosphate−sphingosine−choline 
D)  none of the above

Question 9

In which of the following ways do bile salts remove excess cholesterol?

Accepted Answer

A)  Bile salts convert LDL to HDL. 
B)  Cholesterol is converted to bile salts which are then eliminated in the feces. 
C)  both a and b 
D)  neither a nor b 
A)  Bile salts convert LDL to HDL. 
B)  Cholesterol is converted to bile salts which are then eliminated in the feces. 
C)  both a and b 
D)  neither a nor b

Question 10

Which of the following linkages can be found in cerebrosides?

Accepted Answer

A)  β-galactosidic 
B)  β-glucosidic 
C)  either a or b 
D)  neither a nor b 
A)  β-galactosidic 
B)  β-glucosidic 
C)  either a or b 
D)  neither a nor b

Question 11

Which of the following is true of most fatty acids found in triglycerides?

Accepted Answer

A)  They are unbranched. 
B)  They contain more than 20 carbon atoms. 
C)  They contain an odd number of carbon atoms. 
D)  none of the above 
A)  They are unbranched. 
B)  They contain more than 20 carbon atoms. 
C)  They contain an odd number of carbon atoms. 
D)  none of the above

Question 12

Which of the following is an ingredient in many sports drinks?

Accepted Answer

A)  alanine 
B)  histidine 
C)  serine 
D)  taurine 
A)  alanine 
B)  histidine 
C)  serine 
D)  taurine

Question 13

RU486 blocks progesterone action by functioning as which type of inhibitor?

Accepted Answer

A)  cooperative inhibitor 
B)  competitive inhibitor 
C)  noncompetitive inhibitor 
D)  selective inhibitor 
A)  cooperative inhibitor 
B)  competitive inhibitor 
C)  noncompetitive inhibitor 
D)  selective inhibitor

Question 14

Which of the following does not occur when progesterone is synthesized from cholesterol?

Accepted Answer

A)  oxidation of an alcohol 
B)  shortening of the aliphatic side chain 
C)  removal of a methyl group 
D)  None, they all occur. 
A)  oxidation of an alcohol 
B)  shortening of the aliphatic side chain 
C)  removal of a methyl group 
D)  None, they all occur.

Question 15

How does RU486 function when it is used to treat Cushing syndrome?

Accepted Answer

A)  as a cooperative inhibitor 
B)  as a competitive inhibitor 
C)  as a noncompetitive inhibitor 
D)  as a selective inhibitor 
A)  as a cooperative inhibitor 
B)  as a competitive inhibitor 
C)  as a noncompetitive inhibitor 
D)  as a selective inhibitor

Question 16

In cholesterol, to which ring of the steroid system is the hydroxyl group attached?

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
A)  A 
B)  B 
C)  C 
D)  D

Question 17

Which hormone inhibits further ovulation once an egg has been fertilized?

Accepted Answer

A)  estradiol 
B)  luteinizing hormone 
C)  progesterone 
D)  none of these 
A)  estradiol 
B)  luteinizing hormone 
C)  progesterone 
D)  none of these

Question 18

Aspirin and other NSAIDs do which of the following?

Accepted Answer

A)  inhibit both COX-1 and COX-2 activity 
B)  inhibit only COX-1 activity 
C)  inhibit only COX-2 activity 
D)  none of the above 
A)  inhibit both COX-1 and COX-2 activity 
B)  inhibit only COX-1 activity 
C)  inhibit only COX-2 activity 
D)  none of the above

Question 19

Which of the following is true of oleic acid?

Accepted Answer

A)  It is an essential, saturated fatty acid. 
B)  It is an essential, unsaturated fatty acid. 
C)  It is not an essential fatty acid, but is a saturated fatty acid. 
D)  It is not an essential fatty acid, but is an unsaturated fatty acid. 
A)  It is an essential, saturated fatty acid. 
B)  It is an essential, unsaturated fatty acid. 
C)  It is not an essential fatty acid, but is a saturated fatty acid. 
D)  It is not an essential fatty acid, but is an unsaturated fatty acid.

Question 20

Which of the following is used to define lipids?

Accepted Answer

A)  the presence of a specific functional group 
B)  their chemical structure 
C)  their insolubility in water 
D)  none of these 
A)  the presence of a specific functional group 
B)  their chemical structure 
C)  their insolubility in water 
D)  none of these

Exam 21: Lipids

Bile salts are best described as which of the following?

Which components of a sphingolipid are collectively known as a ceramide?

Which of the following is contains free cholesterol?

Gaucher's disease is associated with which of the following?

Which of the following will most directly result in an increase in the amount of cholesterol synthesized in the liver?

What is the effect of administering cortisol to a patient?

Which of the following is found in glycolipids but not in other complex lipids?

Which of the following linkages is found in sphingolipids?

In which of the following ways do bile salts remove excess cholesterol?

Which of the following linkages can be found in cerebrosides?

Which of the following is true of most fatty acids found in triglycerides?

Which of the following is an ingredient in many sports drinks?

RU486 blocks progesterone action by functioning as which type of inhibitor?

Which of the following does not occur when progesterone is synthesized from cholesterol?

How does RU486 function when it is used to treat Cushing syndrome?

In cholesterol, to which ring of the steroid system is the hydroxyl group attached?

Which hormone inhibits further ovulation once an egg has been fertilized?

Aspirin and other NSAIDs do which of the following?

Which of the following is true of oleic acid?

Which of the following is used to define lipids?

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