Question 1

Which statements BEST describes the purpose of triacylglycerols in the body?

Accepted Answer

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

Question 2

A polyunsaturated fatty acid contains multiple

Accepted Answer

A)  ketones. 
B)  carboxylic acids. 
C)  carbon-carbon double bonds. 
D)  alcohols. 
E)  Any of the above is correct. 
A)  ketones. 
B)  carboxylic acids. 
C)  carbon-carbon double bonds. 
D)  alcohols. 
E)  Any of the above is correct.

Question 3

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 4

Which statement BEST describes the importance of emulsification in fat digestion?

Accepted Answer

A)  Emulsification breaks the fatty acids apart from glycerol, resulting in the absorption of the fat. 
B)  Emulsification is required to break up globules of insoluble fats so they can be hydrolyzed. 
C)  Emulsifiers are the molecules that actively transport fats into cells. 
D)  Emulsifiers transport fats through the bloodstream. 
E)  Emulsification transports electrons to lipase during hydrolysis. 
A)  Emulsification breaks the fatty acids apart from glycerol, resulting in the absorption of the fat. 
B)  Emulsification is required to break up globules of insoluble fats so they can be hydrolyzed. 
C)  Emulsifiers are the molecules that actively transport fats into cells. 
D)  Emulsifiers transport fats through the bloodstream. 
E)  Emulsification transports electrons to lipase during hydrolysis.

Question 5

Degradation of dietary fats begins in the

Accepted Answer

A)  mouth. 
B)  stomach. 
C)  small intestine. 
D)  colon. 
E)  liver. 
A)  mouth. 
B)  stomach. 
C)  small intestine. 
D)  colon. 
E)  liver.

Question 6

Generally, membrane lipids

Accepted Answer

A)  contain a hydroxyl group. 
B)  contain more than one ester functional group. 
C)  have a sphingosine backbone. 
D)  have a glycerol backbone. 
E)  have a nonpolar and a polar region. 
A)  contain a hydroxyl group. 
B)  contain more than one ester functional group. 
C)  have a sphingosine backbone. 
D)  have a glycerol backbone. 
E)  have a nonpolar and a polar region.

Question 7

The lipid bilayer is fluid-like and flexible.Because of this, it is often described as

Accepted Answer

A)  ductile. 
B)  a fluid mosaic. 
C)  squashy. 
D)  supple elastic. 
E)  bendable membrane. 
A)  ductile. 
B)  a fluid mosaic. 
C)  squashy. 
D)  supple elastic. 
E)  bendable membrane.

Question 8

Which statement below BEST describes the following structure?

Accepted Answer

A)  This is the structure of an anabolic steroid. 
B)  This is the structure of testosterone. 
C)  This is the structures of the backbone of all steroids. 
D)  This is the structure of the backbone of all lipids. 
E)  This is cholesterol. 
A)  This is the structure of an anabolic steroid. 
B)  This is the structure of testosterone. 
C)  This is the structures of the backbone of all steroids. 
D)  This is the structure of the backbone of all lipids. 
E)  This is cholesterol.

Question 9

Which statement 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 describe the lipid bilayer. 
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 describe the lipid bilayer.

Question 10

Which choice correctly numbers linolenic acid (shown below)using the omega system?

Accepted Answer

A)  omega-9,12,15 
B)  omega-9 
C)  omega-3 
D)  omega-3,6,9 
E)  omega-9,12 
A)  omega-9,12,15 
B)  omega-9 
C)  omega-3 
D)  omega-3,6,9 
E)  omega-9,12

Question 11

This lipoprotein is the largest and least dense.

Accepted Answer

A)  chylomicron 
B)  VLDL 
C)  IDL 
D)  LDL 
E)  HDL 
A)  chylomicron 
B)  VLDL 
C)  IDL 
D)  LDL 
E)  HDL

Question 12

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

Accepted Answer

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

Question 13

Match the type of fatty acid with its shape. ​
I II III
Unsaturated Unsaturated Saturated
Cis double bond trans double bond
​

Accepted Answer

A)  I: linear II: bent III: bent 
B)  I: linear II: bent III: linear 
C)  I: bent II: linear III: linear 
D)  I: linear II: linear III: bent 
E)  I: linear II: bent III: linear. 
A)  I: linear II: bent III: bent 
B)  I: linear II: bent III: linear 
C)  I: bent II: linear III: linear 
D)  I: linear II: linear III: bent 
E)  I: linear II: bent III: linear.

Question 14

How does a double bond in a fatty acid change the overall structure of the fatty acid?

Accepted Answer

A)  The overall structure does not change. 
B)  The more double bonds a fatty acid has, the more linear it is. 
C)  The more double bonds a fatty acid has, the more flexible it is. 
D)  The more double bonds a fatty acid has, the more bent or kinked it is. 
E)  The more double bonds a fatty acid has, the more twisted it is. 
A)  The overall structure does not change. 
B)  The more double bonds a fatty acid has, the more linear it is. 
C)  The more double bonds a fatty acid has, the more flexible it is. 
D)  The more double bonds a fatty acid has, the more bent or kinked it is. 
E)  The more double bonds a fatty acid has, the more twisted it is.

Question 15

The component of a cell membrane shown below is

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 16

Triacylglycerols generally have physical properties

Accepted Answer

A)  similar to the fatty acids from which they are composed. 
B)  similar to glycerol. 
C)  very different from the fatty acids from which they are composed. 
D)  similar to phospholipids. 
E)  All lipids have the same physical properties. 
A)  similar to the fatty acids from which they are composed. 
B)  similar to glycerol. 
C)  very different from the fatty acids from which they are composed. 
D)  similar to phospholipids. 
E)  All lipids have the same physical properties.

Question 17

The bar graph below shows the percentage of saturated fats in a variety of triacylglycerols.Given this information, which triacylglycerols should be minimized in the diet?

Accepted Answer

A)  canola oil 
B)  butter 
C)  canola oil, olive oil, and margarine 
D)  margarine 
E)  palm oil and butter 
A)  canola oil 
B)  butter 
C)  canola oil, olive oil, and margarine 
D)  margarine 
E)  palm oil and butter

Question 18

Identify the class of lipid to which the following molecule belongs.

Accepted Answer

A)  eicosanoid 
B)  triacylglycerol 
C)  steroid 
D)  glycerophospholipid 
E)  fatty acid 
A)  eicosanoid 
B)  triacylglycerol 
C)  steroid 
D)  glycerophospholipid 
E)  fatty acid

Question 19

Fatty acids are stored in _______ and undergo metabolism in_______.

Accepted Answer

A)  lipoproteins; adipocytes 
B)  adipocytes; adipocytes 
C)  adipocytes; muscle cells 
D)  muscle cells; lipoproteins 
E)  lipoproteins; lipoproteins 
A)  lipoproteins; adipocytes 
B)  adipocytes; adipocytes 
C)  adipocytes; muscle cells 
D)  muscle cells; lipoproteins 
E)  lipoproteins; lipoproteins

Question 20

Anti-asthma medications are ________ inhibitors, whereas nonsteroidal 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

Which statements BEST describes the purpose of triacylglycerols in the body?

A polyunsaturated fatty acid contains multiple

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

Which statement BEST describes the importance of emulsification in fat digestion?

Degradation of dietary fats begins in the

Generally, membrane lipids

The lipid bilayer is fluid-like and flexible.Because of this, it is often described as

Which statement below BEST describes the following structure?

Which statement BEST describes the lipid bilayer?

Which choice correctly numbers linolenic acid (shown below)using the omega system?

This lipoprotein is the largest and least dense.

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

Match the type of fatty acid with its shape. I II III Unsaturated Unsaturated Saturated Cis double bond trans double bond

How does a double bond in a fatty acid change the overall structure of the fatty acid?

The component of a cell membrane shown below is

Triacylglycerols generally have physical properties

The bar graph below shows the percentage of saturated fats in a variety of triacylglycerols.Given this information, which triacylglycerols should be minimized in the diet?

Identify the class of lipid to which the following molecule belongs.

Fatty acids are stored in _ and undergo metabolism in_.

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

Matter, Energy, and Measurement

Atomic Structure and Radioisotopes

Ionic and Covalent Compounds

Molecular Geometry, Polarity, and Intermolecular

Chemical Quantities and Introduction to Reactions

Chemical Reactions: Energy, Rates, and Equilibrium

Changes of State and Gas Laws

Mixtures, Solution Concentrations, and Diffusion

Acids and Bases, Ph, and Buffers

Introduction to Organic Chemistry:

Alcohols, Phenols, Thiols, Ethers, and Amines

The Carbonyl Containing Functional Groups

The Common Organic Reactions in Biochemistry

Carbohydrates: Structure and Function

Proteins: Structure and Function

Nucleotides and Nucleic Acids

Energy and Metabolism

Filters

Exam 15: Lipids: Structure and Function

Which statements BEST describes the purpose of triacylglycerols in the body?

A polyunsaturated fatty acid contains multiple

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

Which statement BEST describes the importance of emulsification in fat digestion?

Degradation of dietary fats begins in the

Generally, membrane lipids

The lipid bilayer is fluid-like and flexible.Because of this, it is often described as

Which statement below BEST describes the following structure?

Which statement BEST describes the lipid bilayer?

Which choice correctly numbers linolenic acid (shown below)using the omega system?

This lipoprotein is the largest and least dense.

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

Match the type of fatty acid with its shape. ​ I II III Unsaturated Unsaturated Saturated Cis double bond trans double bond ​

How does a double bond in a fatty acid change the overall structure of the fatty acid?

The component of a cell membrane shown below is

Triacylglycerols generally have physical properties

The bar graph below shows the percentage of saturated fats in a variety of triacylglycerols.Given this information, which triacylglycerols should be minimized in the diet?

Identify the class of lipid to which the following molecule belongs.

Fatty acids are stored in _______ and undergo metabolism in_______.

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

Matter, Energy, and Measurement

Atomic Structure and Radioisotopes

Ionic and Covalent Compounds

Molecular Geometry, Polarity, and Intermolecular

Chemical Quantities and Introduction to Reactions

Chemical Reactions: Energy, Rates, and Equilibrium

Changes of State and Gas Laws

Mixtures, Solution Concentrations, and Diffusion

Acids and Bases, Ph, and Buffers

Introduction to Organic Chemistry:

Alcohols, Phenols, Thiols, Ethers, and Amines

The Carbonyl Containing Functional Groups

The Common Organic Reactions in Biochemistry

Carbohydrates: Structure and Function

Proteins: Structure and Function

Nucleotides and Nucleic Acids

Energy and Metabolism

Filters

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

Match the type of fatty acid with its shape. I II III Unsaturated Unsaturated Saturated Cis double bond trans double bond

Fatty acids are stored in _ and undergo metabolism in_.

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