Question 1

Lipid II contains which of the following functional groups not found in lipid I?

Accepted Answer

A)  amide 
B)  alcohol 
C)  alkene 
D)  amide and alcohol 
E)  amide, alcohol, and alkene 
A)  amide 
B)  alcohol 
C)  alkene 
D)  amide and alcohol 
E)  amide, alcohol, and alkene

Question 2

Compared to fats and sugars, how much energy do fats supply?

Accepted Answer

A)  Per gram, fats supply about half the energy of proteins and sugars. 
B)  Per gram, fats supply about twice the energy of proteins and sugars. 
C)  Per gram, fats supply about one-fourth the energy of proteins and sugars. 
D)  Per gram, fats supply about four times the energy of proteins and sugars. 
E)  Fats, sugars, and proteins all supply about the same amount of energy. 
A)  Per gram, fats supply about half the energy of proteins and sugars. 
B)  Per gram, fats supply about twice the energy of proteins and sugars. 
C)  Per gram, fats supply about one-fourth the energy of proteins and sugars. 
D)  Per gram, fats supply about four times the energy of proteins and sugars. 
E)  Fats, sugars, and proteins all supply about the same amount of energy.

Question 3

Which statement about cholesterol is FALSE?

Accepted Answer

A)  It is used to synthesize steroid hormones. 
B)  It is a precursor for bile acids. 
C)  It adds rigidity to cell membranes. 
D)  It is a precursor of prostaglandins. 
E)  It is an amphipathic molecule. 
A)  It is used to synthesize steroid hormones. 
B)  It is a precursor for bile acids. 
C)  It adds rigidity to cell membranes. 
D)  It is a precursor of prostaglandins. 
E)  It is an amphipathic molecule.

Question 4

Triacylglycerols are not soluble in water and so cannot be transported through the blood without help.How are fats transported?

Accepted Answer

A)  in lipoproteins 
B)  in starch 
C)  alongside hormones 
D)  through protein channels 
E)  They are not transported. 
A)  in lipoproteins 
B)  in starch 
C)  alongside hormones 
D)  through protein channels 
E)  They are not transported.

Question 5

From what common molecule are all eicosanoids synthesized in the body?

Accepted Answer

A)  cholesterol 
B)  any triacylglycerol 
C)  arachidonic acid 
D)  lipoproteins 
E)  any glycerophospholipid 
A)  cholesterol 
B)  any triacylglycerol 
C)  arachidonic acid 
D)  lipoproteins 
E)  any glycerophospholipid

Question 6

These steroid hormones control the menstrual cycle.

Accepted Answer

A)  glucocorticoids 
B)  mineralocorticoids 
C)  progestins 
D)  androgens 
E)  estrogens 
A)  glucocorticoids 
B)  mineralocorticoids 
C)  progestins 
D)  androgens 
E)  estrogens

Question 7

An adipocyte stores

Accepted Answer

A)  proteins. 
B)  triacylglycerols. 
C)  white blood cells. 
D)  red blood cells. 
E)  carbohydrates. 
A)  proteins. 
B)  triacylglycerols. 
C)  white blood cells. 
D)  red blood cells. 
E)  carbohydrates.

Question 8

Which statement BEST describes why HDL is considered "good cholesterol"?

Accepted Answer

A)  It has the highest density. 
B)  It is the smallest lipoprotein. 
C)  It scavenges excess cholesterol and takes it to the liver. 
D)  It takes triacylglycerols to adipocytes. 
E)  It converts cholesterol into bile salts. 
A)  It has the highest density. 
B)  It is the smallest lipoprotein. 
C)  It scavenges excess cholesterol and takes it to the liver. 
D)  It takes triacylglycerols to adipocytes. 
E)  It converts cholesterol into bile salts.

Question 9

Which figure BEST illustrates how the lipid bilayer would arrange itself in a nonpolar solution, such as hexane?

Accepted Answer

A)  figure a 
B)  figure b 
C)  figure c 
D)  figure d 
E)  The bilayer would disintegrate. 
A)  figure a 
B)  figure b 
C)  figure c 
D)  figure d 
E)  The bilayer would disintegrate.

Question 10

Which molecule is NOT a naturally occurring fatty acid?

Accepted Answer

A)    
B)  CH3(CH2)7CH=CH(CH2)7CO2H 
C)    
D)    
E)  CH3(CH2)4(CH=CHCH2)4(CH2)2CO2H 
A)    
B)  CH3(CH2)7CH=CH(CH2)7CO2H 
C)    
D)    
E)  CH3(CH2)4(CH=CHCH2)4(CH2)2CO2H

Question 11

Which biomolecules provide the MOST energy per gram?

Accepted Answer

A)  proteins 
B)  carbohydrates 
C)  triacylglycerols 
D)  Protein and carbohydrates provide more energy than triacylglycerols. 
E)  Proteins, carbohydrates, and triacylglycerols provide the same amount of energy. 
A)  proteins 
B)  carbohydrates 
C)  triacylglycerols 
D)  Protein and carbohydrates provide more energy than triacylglycerols. 
E)  Proteins, carbohydrates, and triacylglycerols provide the same amount of energy.

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

Why might an anabolic steroid be prescribed by a doctor?

Accepted Answer

A)  to promote growth in those below average height 
B)  to treat low testosterone 
C)  to treat inflammation 
D)  to treat cancer 
E)  to treat infection 
A)  to promote growth in those below average height 
B)  to treat low testosterone 
C)  to treat inflammation 
D)  to treat cancer 
E)  to treat infection

Question 14

This type of lipoprotein is often called "good cholesterol."

Accepted Answer

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

Question 15

Which type of lipid is the main component of cell membranes?

Accepted Answer

A)  triacylglycerols and steroids 
B)  eicosanoids and steroids 
C)  fatty acids and eicosanoids 
D)  phospholipids and glycolipids 
E)  triacylglycerols and eicosanoid 
A)  triacylglycerols and steroids 
B)  eicosanoids and steroids 
C)  fatty acids and eicosanoids 
D)  phospholipids and glycolipids 
E)  triacylglycerols and eicosanoid

Question 16

The component of a cell membrane shown below is

Accepted Answer

A)  nonpolar. 
B)  a steroid. 
C)  amphipathic. 
D)  polar. 
E)  a lipoprotein. 
A)  nonpolar. 
B)  a steroid. 
C)  amphipathic. 
D)  polar. 
E)  a lipoprotein.

Question 17

Where would you MOST likely find unsaturated fats?

Accepted Answer

A)  They are found in meat. 
B)  They are found in cheese. 
C)  They are found in butter. 
D)  They are found in plants. 
E)  They are found in margarine. 
A)  They are found in meat. 
B)  They are found in cheese. 
C)  They are found in butter. 
D)  They are found in plants. 
E)  They are found in margarine.

Question 18

The lipid is labeled A-D.Which of the labeled parts of this molecule comprise the sphingosine backbone?

Accepted Answer

A)  A only 
B)  A and B 
C)  B and C 
D)  A, B, and D 
E)  The sphingosine backbone is composed of all of the labeled parts of the molecule. 
A)  A only 
B)  A and B 
C)  B and C 
D)  A, B, and D 
E)  The sphingosine backbone is composed of all of the labeled parts of the molecule.

Question 19

The body uses _________ for short-term energy storage and _______ for long-term energy needs.

Accepted Answer

A)  triacylglycerols; glucose 
B)  glucose; triacylglycerols 
C)  glycogen; triacylglycerols 
D)  glucose; glycogen 
E)  glycogen; glucose 
A)  triacylglycerols; glucose 
B)  glucose; triacylglycerols 
C)  glycogen; triacylglycerols 
D)  glucose; glycogen 
E)  glycogen; glucose

Question 20

Which molecule is an eicosanoid?

Accepted Answer

A)    
B)  CH3(CH2)16COO-Na+ 
C)  CH3(CH2)16COO(CH2)11CH3 
D)    
E)    
A)    
B)  CH3(CH2)16COO-Na+ 
C)  CH3(CH2)16COO(CH2)11CH3 
D)    
E)

Lipid II contains which of the following functional groups not found in lipid I?

Compared to fats and sugars, how much energy do fats supply?

Which statement about cholesterol is FALSE?

Triacylglycerols are not soluble in water and so cannot be transported through the blood without help.How are fats transported?

From what common molecule are all eicosanoids synthesized in the body?

These steroid hormones control the menstrual cycle.

An adipocyte stores

Which statement BEST describes why HDL is considered "good cholesterol"?

Which figure BEST illustrates how the lipid bilayer would arrange itself in a nonpolar solution, such as hexane?

Which molecule is NOT a naturally occurring fatty acid?

Which biomolecules provide the MOST energy per gram?

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

Why might an anabolic steroid be prescribed by a doctor?

This type of lipoprotein is often called "good cholesterol."

Which type of lipid is the main component of cell membranes?

The component of a cell membrane shown below is

Where would you MOST likely find unsaturated fats?

The lipid is labeled A-D.Which of the labeled parts of this molecule comprise the sphingosine backbone?

The body uses ___ for short-term energy storage and _ for long-term energy needs.

Which molecule is an eicosanoid?

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

Lipid II contains which of the following functional groups not found in lipid I?

Compared to fats and sugars, how much energy do fats supply?

Which statement about cholesterol is FALSE?

Triacylglycerols are not soluble in water and so cannot be transported through the blood without help.How are fats transported?

From what common molecule are all eicosanoids synthesized in the body?

These steroid hormones control the menstrual cycle.

An adipocyte stores

Which statement BEST describes why HDL is considered "good cholesterol"?

Which figure BEST illustrates how the lipid bilayer would arrange itself in a nonpolar solution, such as hexane?

Which molecule is NOT a naturally occurring fatty acid?

Which biomolecules provide the MOST energy per gram?

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

Why might an anabolic steroid be prescribed by a doctor?

This type of lipoprotein is often called "good cholesterol."

Which type of lipid is the main component of cell membranes?

The component of a cell membrane shown below is

Where would you MOST likely find unsaturated fats?

The lipid is labeled A-D.Which of the labeled parts of this molecule comprise the sphingosine backbone?

The body uses _________ for short-term energy storage and _______ for long-term energy needs.

Which molecule is an eicosanoid?

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 body uses ___ for short-term energy storage and _ for long-term energy needs.