Question 1

Which of the following choices does NOT describe a way in which molecules are transported through the cell membrane?

Accepted Answer

A)  Water passes through the cell membrane by osmosis. 
B)  Specialized proteins transfer some polar molecules through the membrane. 
C)  Glucose is absorbed through the lipid bilayer. 
D)  Ions are pumped through specialized proteins using energy from ATP. 
E)  Actually, these are all ways that molecules can move through the cell membrane. 
A)  Water passes through the cell membrane by osmosis. 
B)  Specialized proteins transfer some polar molecules through the membrane. 
C)  Glucose is absorbed through the lipid bilayer. 
D)  Ions are pumped through specialized proteins using energy from ATP. 
E)  Actually, these are all ways that molecules can move through the cell membrane.

Question 2

Which of the following statements 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 3

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 4

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 5

Where would you most likely find trans 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 6

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

Question 7

Which of the following is an indicator of inflammation?

Accepted Answer

A)  pain 
B)  swelling 
C)  warmth 
D)  redness 
E)  All of these are indicators of inflammation. 
A)  pain 
B)  swelling 
C)  warmth 
D)  redness 
E)  All of these are indicators of inflammation.

Question 8

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

Accepted Answer

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

Question 9

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

Question 10

Which of the following statements 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 triglycerides 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 triglycerides to adipocytes. 
E)  It converts cholesterol into bile salts.

Question 11

Which of the following is NOT a purpose of the cell membrane?

Accepted Answer

A)  to communicate with chemical messengers 
B)  to separate the contents of the cell from external fluids 
C)  to facilitate transport of nutrients and waste 
D)  to synthesize proteins 
E)  to protect the contents of the cell from undesirable chemicals 
A)  to communicate with chemical messengers 
B)  to separate the contents of the cell from external fluids 
C)  to facilitate transport of nutrients and waste 
D)  to synthesize proteins 
E)  to protect the contents of the cell from undesirable chemicals

Question 12

How does an NSAID reduce pain?

Accepted Answer

A)  It interacts directly with the pain receptors and deadens their response. 
B)  It damages inflammatory prostaglandins. 
C)  It inhibits the formation of inflammatory prostaglandins by inhibiting cyclooxygenase. 
D)  It fights infection and kills bacteria in the injury. 
E)  It reduces fever. 
A)  It interacts directly with the pain receptors and deadens their response. 
B)  It damages inflammatory prostaglandins. 
C)  It inhibits the formation of inflammatory prostaglandins by inhibiting cyclooxygenase. 
D)  It fights infection and kills bacteria in the injury. 
E)  It reduces fever.

Question 13

Which of the fatty acids below is a solid at room temperature?

Accepted Answer

A)  stearic acid 
B)  stearic acid and palmitic acid 
C)  oleic acid, linoleic acid and arachidonic acid 
D)  arachidonic acid 
E)  None of these are solids at room temperature. 
A)  stearic acid 
B)  stearic acid and palmitic acid 
C)  oleic acid, linoleic acid and arachidonic acid 
D)  arachidonic acid 
E)  None of these are solids at room temperature.

Question 14

Which of the following reactions illustrate the hydrolysis of triglycerides during digestion?

Accepted Answer

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

Question 15

What important role does sphingomyelin have in the body?

Accepted Answer

A)  It insulates nerve fibers in the brain. 
B)  It is important in energy storage. 
C)  It is a chemical messenger. 
D)  It is the primary component of the lipid bilayer for all cells. 
E)  It lines the stomach. 
A)  It insulates nerve fibers in the brain. 
B)  It is important in energy storage. 
C)  It is a chemical messenger. 
D)  It is the primary component of the lipid bilayer for all cells. 
E)  It lines the stomach.

Question 16

Which of the following statements describes lipids?

Accepted Answer

A)  Lipids all have the steroid backbone. 
B)  The body stores excess calories as lipids. 
C)  Lipids are insoluble in water, but soluble in nonpolar solvents. 
D)  Lipids are soluble in water, but insoluble in nonpolar solvents. 
E)  Lipids are insoluble in all solvents. 
A)  Lipids all have the steroid backbone. 
B)  The body stores excess calories as lipids. 
C)  Lipids are insoluble in water, but soluble in nonpolar solvents. 
D)  Lipids are soluble in water, but insoluble in nonpolar solvents. 
E)  Lipids are insoluble in all solvents.

Question 17

Triglycerides 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 18

Which of the following choices correctly numbers linolenic acid (shown below) using the delta system?

Accepted Answer

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

Question 19

Which statement best describes the meaning of "saturated" as it relates to fatty acids?

Accepted Answer

A)  "Saturated" means that the fatty acid is hydrated. 
B)  "Saturated" means that the fatty acid is dissolved in water. 
C)  "Saturated" means that the fatty acid is bent or kinked. 
D)  "Saturated" means that the fatty acid has many carboxylic acids. 
E)  "Saturated" means that the fatty acid has the maximum number of hydrogens possible. 
A)  "Saturated" means that the fatty acid is hydrated. 
B)  "Saturated" means that the fatty acid is dissolved in water. 
C)  "Saturated" means that the fatty acid is bent or kinked. 
D)  "Saturated" means that the fatty acid has many carboxylic acids. 
E)  "Saturated" means that the fatty acid has the maximum number of hydrogens possible.

Question 20

This class of steroid hormone is used to treat inflammatory diseases, including rashes, asthma, and arthritis.

Accepted Answer

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

Which of the following choices does NOT describe a way in which molecules are transported through the cell membrane?

Which of the following statements best describes the importance of emulsification in fat digestion?

Why might an anabolic steroid be prescribed by a doctor?

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

Where would you most likely find trans fats?

A polyunsaturated fatty acid contains multiple

Which of the following is an indicator of inflammation?

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

What type of lipid is this molecule?

Which of the following statements best describes why HDL is considered "good cholesterol"?

Which of the following is NOT a purpose of the cell membrane?

How does an NSAID reduce pain?

Which of the fatty acids below is a solid at room temperature?

Which of the following reactions illustrate the hydrolysis of triglycerides during digestion?

What important role does sphingomyelin have in the body?

Which of the following statements describes lipids?

Triglycerides generally have physical properties

Which of the following choices correctly numbers linolenic acid (shown below) using the delta system?

Which statement best describes the meaning of "saturated" as it relates to fatty acids?

This class of steroid hormone is used to treat inflammatory diseases, including rashes, asthma, and arthritis.

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 following choices does NOT describe a way in which molecules are transported through the cell membrane?

Which of the following statements best describes the importance of emulsification in fat digestion?

Why might an anabolic steroid be prescribed by a doctor?

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

Where would you most likely find trans fats?

A polyunsaturated fatty acid contains multiple

Which of the following is an indicator of inflammation?

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

What type of lipid is this molecule?

Which of the following statements best describes why HDL is considered "good cholesterol"?

Which of the following is NOT a purpose of the cell membrane?

How does an NSAID reduce pain?

Which of the fatty acids below is a solid at room temperature?

Which of the following reactions illustrate the hydrolysis of triglycerides during digestion?

What important role does sphingomyelin have in the body?

Which of the following statements describes lipids?

Triglycerides generally have physical properties

Which of the following choices correctly numbers linolenic acid (shown below) using the delta system?

Which statement best describes the meaning of "saturated" as it relates to fatty acids?

This class of steroid hormone is used to treat inflammatory diseases, including rashes, asthma, and arthritis.

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