Question 1

Which of the fatty acids below has the highest melting point?

Accepted Answer

A)  stearic acid 
B)  palmitic acid 
C)  oleic acid 
D)  arachidonic acid 
E)  linoleic acid 
A)  stearic acid 
B)  palmitic acid 
C)  oleic acid 
D)  arachidonic acid 
E)  linoleic acid

Question 2

What type of lipid is this molecule?

Accepted Answer

A)  This is a triacylglycerol. 
B)  This is a glycerophospholipid. 
C)  This is a glycosphingolipid. 
D)  This is a sphingomyelin. 
E)  This is an ethanolamine. 
A)  This is a triacylglycerol. 
B)  This is a glycerophospholipid. 
C)  This is a glycosphingolipid. 
D)  This is a sphingomyelin. 
E)  This is an ethanolamine.

Question 3

The following molecule is a cerebroside. What characteristics does this molecule have?

Accepted Answer

A)  The molecule has a sphingosine backbone and a galactose sugar. 
B)  The molecule has a glycerol backbone and a galactose sugar. 
C)  The molecule contains an amine. 
D)  The molecule has a sphingosine backbone and a glucose sugar. 
E)  The molecule has a glycerol backbone and a glucose sugar. 
A)  The molecule has a sphingosine backbone and a galactose sugar. 
B)  The molecule has a glycerol backbone and a galactose sugar. 
C)  The molecule contains an amine. 
D)  The molecule has a sphingosine backbone and a glucose sugar. 
E)  The molecule has a glycerol backbone and a glucose sugar.

Question 4

The functional group that is circled is called a(n)

Accepted Answer

A)  ester. 
B)  ether. 
C)  carboxylic acid. 
D)  carbonyl. 
E)  ketone. 
A)  ester. 
B)  ether. 
C)  carboxylic acid. 
D)  carbonyl. 
E)  ketone.

Question 5

As VLDLs deliver their triglycerides to cells, the lipoproteins become

Accepted Answer

A)  chylomicrons only. 
B)  chylomicrons and VLDL. 
C)  IDL and LDL. 
D)  LDL and HDL. 
E)  All of the lipoproteins do this. 
A)  chylomicrons only. 
B)  chylomicrons and VLDL. 
C)  IDL and LDL. 
D)  LDL and HDL. 
E)  All of the lipoproteins do this.

Question 6

A membrane lipid is often depicted as shown below in Lipid I. Which part of the molecular structure of Lipid I does the circle represent?

Accepted Answer

A)  Part A 
B)  Part B 
C)  Part C 
D)  Parts A and B 
E)  Parts B and C 
A)  Part A 
B)  Part B 
C)  Part C 
D)  Parts A and B 
E)  Parts B and C

Question 7

Which of the following molecules is NOT a naturally occurring fatty acid?

Accepted Answer

A)  a 
B)  b 
C)  c 
D)  d 
E)  e 
A)  a 
B)  b 
C)  c 
D)  d 
E)  e

Question 8

Which of the following choices correctly numbers pinolenic acid (shown below) using the omega system?

Accepted Answer

A)  omega-5,9,12 
B)  omega-5 
C)  omega-3 
D)  omega-6 
E)  omega-6,9,13 
A)  omega-5,9,12 
B)  omega-5 
C)  omega-3 
D)  omega-6 
E)  omega-6,9,13

Question 9

Which of the following statements best describes the purpose of triacylglycerides in the body?

Accepted Answer

A)  Triacylglycerides are a reservoir of long-term energy. 
B)  Triacylglycerides are a reservoir of short-term energy. 
C)  Triacylglycerides are chemical messengers. 
D)  Triacylglycerides are the main components of cell walls. 
E)  Triacylglycerides are important components of our diet, but do not have a purpose in the body. 
A)  Triacylglycerides are a reservoir of long-term energy. 
B)  Triacylglycerides are a reservoir of short-term energy. 
C)  Triacylglycerides are chemical messengers. 
D)  Triacylglycerides are the main components of cell walls. 
E)  Triacylglycerides are important components of our diet, but do not have a purpose in the body.

Question 10

The following triglyceride is

Accepted Answer

A)  a fat because it is unsaturated. 
B)  a fat because it is saturated. 
C)  an oil because it is unsaturated. 
D)  an oil because it is saturated. 
E)  neither a fat nor an oil. 
A)  a fat because it is unsaturated. 
B)  a fat because it is saturated. 
C)  an oil because it is unsaturated. 
D)  an oil because it is saturated. 
E)  neither a fat nor an oil.

Question 11

This type of lipoprotein travels through the blood and delivers triglycerides to adipose and muscle cells.

Accepted Answer

A)  chylomicrons only 
B)  chylomicrons and VLDL 
C)  IDL and LDL 
D)  LDL and HDL 
E)  All of the lipoproteins do this. 
A)  chylomicrons only 
B)  chylomicrons and VLDL 
C)  IDL and LDL 
D)  LDL and HDL 
E)  All of the lipoproteins do this.

Question 12

About how long do an average adult male's glycogen stores last?

Accepted Answer

A)  about an hour 
B)  about a day 
C)  about a week 
D)  about a month 
E)  about 12 weeks 
A)  about an hour 
B)  about a day 
C)  about a week 
D)  about a month 
E)  about 12 weeks

Question 13

A patient has sprained her knee in a game of basketball and presents with swelling and pain. Which of the following statements best describes why the swelling occurs?

Accepted Answer

A)  Leukotrienes make blood vessels more permeable, leading to the delivery of immune system cells to the damaged tissue. 
B)  Broken blood vessels bleed into the injured area, making it swell. 
C)  The increase in temperature by prostaglandins results in increased blood flow to the area. 
D)  Thromboxanes isolate the injured tissue, resulting in swelling. 
E)  All of the above 
A)  Leukotrienes make blood vessels more permeable, leading to the delivery of immune system cells to the damaged tissue. 
B)  Broken blood vessels bleed into the injured area, making it swell. 
C)  The increase in temperature by prostaglandins results in increased blood flow to the area. 
D)  Thromboxanes isolate the injured tissue, resulting in swelling. 
E)  All of the above

Question 14

The component of a cell membrane shown below is a

Accepted Answer

A)  glycerophospholipid. 
B)  glycosphingolipid. 
C)  sphingomyelin. 
D)  triacylglycerol. 
E)  fatty acid. 
A)  glycerophospholipid. 
B)  glycosphingolipid. 
C)  sphingomyelin. 
D)  triacylglycerol. 
E)  fatty acid.

Question 15

Glycerophospholipids typically contain unsaturated fatty acids because they

Accepted Answer

A)  act as receptors for steroids. 
B)  have few attractive forces between them, making the membrane fluid. 
C)  have many attractive forces between them, making the membrane fluid. 
D)  have few attractive forces between them, making the membrane stiff. 
E)  have many attractive forces between them, making the membrane stiff. 
A)  act as receptors for steroids. 
B)  have few attractive forces between them, making the membrane fluid. 
C)  have many attractive forces between them, making the membrane fluid. 
D)  have few attractive forces between them, making the membrane stiff. 
E)  have many attractive forces between them, making the membrane stiff.

Question 16

Which of the following statements best describes the lipid bilayer?

Accepted Answer

A)  It is flexible and fluid-like. 
B)  It is held together by hydrogen bonds. 
C)  It is rigid and stiff. 
D)  It cracks easily. 
E)  All of the above are true. 
A)  It is flexible and fluid-like. 
B)  It is held together by hydrogen bonds. 
C)  It is rigid and stiff. 
D)  It cracks easily. 
E)  All of the above are true.

Question 17

Parts of the lipid below are labeled A and B. Which choice best describes part A and part B?

Accepted Answer

A)  a 
B)  b 
C)  c 
D)  d 
E)  e 
A)  a 
B)  b 
C)  c 
D)  d 
E)  e

Question 18

The component of the cell membrane labeled C corresponds to which part of the following glycerophospholipid?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  2 and 3 
A)  1 
B)  2 
C)  3 
D)  4 
E)  2 and 3

Question 19

Anti-asthma medications are ________ inhibitors, whereas non-steroidal anti-inflammatory drugs inhibit _________.

Accepted Answer

A)  lipoxygenase; cyclooxygenase 
B)  phospholipase; cyclooxygenase 
C)  lipoxygenase; phospholipase 
D)  phospholipase; lipoxygenase 
E)  cyclooxygenase; phospholipase 
A)  lipoxygenase; cyclooxygenase 
B)  phospholipase; cyclooxygenase 
C)  lipoxygenase; phospholipase 
D)  phospholipase; lipoxygenase 
E)  cyclooxygenase; phospholipase

Question 20

Which of the following statements best describes the purpose of a lipoprotein?

Accepted Answer

A)  Lipoproteins metabolize lipids into new substances. 
B)  Lipoproteins transport lipids in the body. 
C)  Lipoproteins dissolve lipids in urine. 
D)  Lipoproteins store lipids. 
E)  Lipoproteins dissolve polar lipids for excretion. 
A)  Lipoproteins metabolize lipids into new substances. 
B)  Lipoproteins transport lipids in the body. 
C)  Lipoproteins dissolve lipids in urine. 
D)  Lipoproteins store lipids. 
E)  Lipoproteins dissolve polar lipids for excretion.

Which of the fatty acids below has the highest melting point?

What type of lipid is this molecule?

The following molecule is a cerebroside. What characteristics does this molecule have?

The functional group that is circled is called a(n)

As VLDLs deliver their triglycerides to cells, the lipoproteins become

A membrane lipid is often depicted as shown below in Lipid I. Which part of the molecular structure of Lipid I does the circle represent?

Which of the following molecules is NOT a naturally occurring fatty acid?

Which of the following choices correctly numbers pinolenic acid (shown below) using the omega system?

Which of the following statements best describes the purpose of triacylglycerides in the body?

The following triglyceride is

This type of lipoprotein travels through the blood and delivers triglycerides to adipose and muscle cells.

About how long do an average adult male's glycogen stores last?

A patient has sprained her knee in a game of basketball and presents with swelling and pain. Which of the following statements best describes why the swelling occurs?

The component of a cell membrane shown below is a

Glycerophospholipids typically contain unsaturated fatty acids because they

Which of the following statements best describes the lipid bilayer?

Parts of the lipid below are labeled A and B. Which choice best describes part A and part B?

The component of the cell membrane labeled C corresponds to which part of the following glycerophospholipid?

Anti-asthma medications are inhibitors, whereas non-steroidal anti-inflammatory drugs inhibit _.

Which of the following statements best describes the purpose of a lipoprotein?

Measuring Matter and Energy

Atomic Structure and Nuclear Radiation

Compounds and Molecules

Chemical Quantities and Chemical Reactions

Changes of State and the Gas Laws

Organic Chemistry: Hydrocarbons

Organic Chemistry and Biomolecules

Solutions, Colloids and Membranes

Acids and Bases

The Reactions of Organic Functional Groups in Biochemistry

Carbohydrates: Structure and Function

Proteins: Structure and Function

Nucleotides and Nucleic Acids

Energy and Metabolism

Filters

Exam 12: Lipids: Structure and Function

Which of the fatty acids below has the highest melting point?

What type of lipid is this molecule?

The following molecule is a cerebroside. What characteristics does this molecule have?

The functional group that is circled is called a(n)

As VLDLs deliver their triglycerides to cells, the lipoproteins become

A membrane lipid is often depicted as shown below in Lipid I. Which part of the molecular structure of Lipid I does the circle represent?

Which of the following molecules is NOT a naturally occurring fatty acid?

Which of the following choices correctly numbers pinolenic acid (shown below) using the omega system?

Which of the following statements best describes the purpose of triacylglycerides in the body?

The following triglyceride is

This type of lipoprotein travels through the blood and delivers triglycerides to adipose and muscle cells.

About how long do an average adult male's glycogen stores last?

A patient has sprained her knee in a game of basketball and presents with swelling and pain. Which of the following statements best describes why the swelling occurs?

The component of a cell membrane shown below is a

Glycerophospholipids typically contain unsaturated fatty acids because they

Which of the following statements best describes the lipid bilayer?

Parts of the lipid below are labeled A and B. Which choice best describes part A and part B?

The component of the cell membrane labeled C corresponds to which part of the following glycerophospholipid?

Anti-asthma medications are ________ inhibitors, whereas non-steroidal anti-inflammatory drugs inhibit _________.

Which of the following statements best describes the purpose of a lipoprotein?

Measuring Matter and Energy

Atomic Structure and Nuclear Radiation

Compounds and Molecules

Chemical Quantities and Chemical Reactions

Changes of State and the Gas Laws

Organic Chemistry: Hydrocarbons

Organic Chemistry and Biomolecules

Solutions, Colloids and Membranes

Acids and Bases

The Reactions of Organic Functional Groups in Biochemistry

Carbohydrates: Structure and Function

Proteins: Structure and Function

Nucleotides and Nucleic Acids

Energy and Metabolism

Filters

Anti-asthma medications are inhibitors, whereas non-steroidal anti-inflammatory drugs inhibit _.