Question 1

Examine the following structure.   Which of the following is the correct classification of this compound?

Accepted Answer

A)  a complex lipid 
B)  a phospholipid 
C)  a glycerophospholipid 
D)  all of these are correct classifications 
A)  a complex lipid 
B)  a phospholipid 
C)  a glycerophospholipid 
D)  all of these are correct classifications

Question 2

Some glycerophospholipids are commonly called lecithins. Which of the following is found in all lecithins?

Accepted Answer

A)  choline 
B)  ethanolamine 
C)  inositol 
D)  serine 
A)  choline 
B)  ethanolamine 
C)  inositol 
D)  serine

Question 3

Which of the following is the basic ring structure of steroids?

Accepted Answer

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

Question 4

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

Accepted Answer

A)  a fatty acid and a phosphate group 
B)  a fatty acid and a sphingosine molecule 
C)  a phosphate group and a choline group 
D)  a phosphate group and a sphingosine molecule 
A)  a fatty acid and a phosphate group 
B)  a fatty acid and a sphingosine molecule 
C)  a phosphate group and a choline group 
D)  a phosphate group and a sphingosine molecule

Question 5

How is RU486 used to treat Cushing's syndrome?

Accepted Answer

A)  It is used as an antiglucocorticoid. 
B)  It is used as an antimineralocorticoid. 
C)  It is used as a glucocorticoid. 
D)  It is used as a mineralocorticoid. 
A)  It is used as an antiglucocorticoid. 
B)  It is used as an antimineralocorticoid. 
C)  It is used as a glucocorticoid. 
D)  It is used as a mineralocorticoid.

Question 6

Which of the following enzymes assists in carbohydrate metabolism?

Accepted Answer

A)  succinate dehydrogenase 
B)  ATP synthase 
C)  tyrosine kinase 
D)  oxidoreductase 
A)  succinate dehydrogenase 
B)  ATP synthase 
C)  tyrosine kinase 
D)  oxidoreductase

Question 7

What is the IUPAC name of glycerol?

Accepted Answer

A)  1,2-ethanediol 
B)  1,2-propanediol 
C)  1,3-propanediol 
D)  1,2,3-propanetriol 
A)  1,2-ethanediol 
B)  1,2-propanediol 
C)  1,3-propanediol 
D)  1,2,3-propanetriol

Question 8

Which of the following diseases is not treated by COX-2 inhibitors?

Accepted Answer

A)  osteoarthritis 
B)  rheumatoid arthritis 
C)  familial adenomatous polyposis 
D)  atherosclerosis 
A)  osteoarthritis 
B)  rheumatoid arthritis 
C)  familial adenomatous polyposis 
D)  atherosclerosis

Question 9

If a triglyceride contains linoleic, linolenic, and oleic acids, then how many moles of hydrogen are required to fully hydrogenate one mole of this triglyceride?

Accepted Answer

A)  3 
B)  4 
C)  5 
D)  6 
A)  3 
B)  4 
C)  5 
D)  6

Question 10

Which of the following is a role of cholesterol?

Accepted Answer

A)  to serve as a component of plasma membranes 
B)  to serve as a starting material for the synthesis of steroid hormones 
C)  to serve as a precursor for the synthesis of bile salts 
D)  all of these 
A)  to serve as a component of plasma membranes 
B)  to serve as a starting material for the synthesis of steroid hormones 
C)  to serve as a precursor for the synthesis of bile salts 
D)  all of these

Question 11

Which fatty acid has the simple designation   ?

Accepted Answer

A)  stearic acid 
B)  oleic acid 
C)  linoleic acid 
D)  linolenic acid 
A)  stearic acid 
B)  oleic acid 
C)  linoleic acid 
D)  linolenic acid

Question 12

What is the function of secondary messengers such as prostaglandins?

Accepted Answer

A)  to carry messages from one part of a cell to another part of the same cell 
B)  to deliver signals from one part of the body to another part 
C)  to mediate hormonal responses 
D)  none of these 
A)  to carry messages from one part of a cell to another part of the same cell 
B)  to deliver signals from one part of the body to another part 
C)  to mediate hormonal responses 
D)  none of these

Exam 20: Lipids

Examine the following structure. Which of the following is the correct classification of this compound?

Some glycerophospholipids are commonly called lecithins. Which of the following is found in all lecithins?

Which of the following is the basic ring structure of steroids?

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

How is RU486 used to treat Cushing's syndrome?

Which of the following enzymes assists in carbohydrate metabolism?

What is the IUPAC name of glycerol?

Which of the following diseases is not treated by COX-2 inhibitors?

If a triglyceride contains linoleic, linolenic, and oleic acids, then how many moles of hydrogen are required to fully hydrogenate one mole of this triglyceride?

Which of the following is a role of cholesterol?

Which fatty acid has the simple designation ?

What is the function of secondary messengers such as prostaglandins?

Matter, Energy, and Measurement

Atoms

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Reaction Rates and Chemical Equilibrium

Acids and Bases

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Alcohols, Ethers, and Thiols

Chirality: the Handedness of Molecules

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Bioenergetics: How the Body Converts Food to Energy

Specific Catabolic Pathways: Carbohydrate, Lipid, and Protein Metabolism

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