Question 1

Why are fats more efficient sources of long-term energy than carbohydrates?

Accepted Answer

Metabolism of a gram

Question 2

Name the compound whose formula is CH3(CH2)12CO2H.

Accepted Answer

Question 3

Which of the following terms best describes the compound below?

Accepted Answer

A)  a sesquiterpene 
B)  a steroid 
C)  a protein 
D)  a cephalin 
E)  an essential oil 
A)  a sesquiterpene 
B)  a steroid 
C)  a protein 
D)  a cephalin 
E)  an essential oil

Question 4

What is an emulsion?

Accepted Answer

A mixture of two insoluble pha

Question 5

What is the difference between a soap and detergent?

Accepted Answer

Soaps are made from the saponification o

Question 6

Which best describes the lipid shown below?

Accepted Answer

A)  wax 
B)  triglyceride 
C)  saturated fatty acid 
D)  unsaturated fatty acid 
E)  lecithin 
A)  wax 
B)  triglyceride 
C)  saturated fatty acid 
D)  unsaturated fatty acid 
E)  lecithin

Question 7

What class of lipids functions to control blood pressure, inflammatory responses, and the clotting of blood?

Accepted Answer

A)  prostaglandins 
B)  steroid 
C)  phospholipids 
D)  triglyceride 
A)  prostaglandins 
B)  steroid 
C)  phospholipids 
D)  triglyceride

Question 8

Which of the following species would be expected to be insoluble in water?
(More than one answer is possible.)

Accepted Answer

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

Question 9

How many molecules of fatty acid are needed to produce one molecule of a fat or oil?

Accepted Answer

A)  1 
B)  1.5 
C)  2 
D)  3 
E)  6 
A)  1 
B)  1.5 
C)  2 
D)  3 
E)  6

Question 10

How can the degree of unsaturation of an oil be gauged using a solution of bromine in carbon tetrachloride?

Accepted Answer

The bromine solution is dark red in colo

Question 11

When a vegetable oil is partially hydrogenated, how is its structure altered and how is its melting point affected?

Accepted Answer

H₂ is added across some of the

Question 12

Draw the basic structure found in prostaglandins.

Accepted Answer

The answer of Draw the basic structure found in prostaglandins....

Question 13

Provide the major organic product of the reaction shown below.

Accepted Answer

The answer of Provide the major organic product of the...

Question 14

Name two of the three predominant groups of simple lipids.

Accepted Answer

steroids,

Question 15

________ is a common biological intermediate and is the biosynthetic precursor to other steroids.

Accepted Answer

The answer of ________ is a common biological intermediate and...

Question 16

Which of the following terms best describes the exterior surface of a soap micelle in water?

Accepted Answer

A)  hydrophobic 
B)  hydrophilic 
C)  hard 
D)  saponified 
E)  hydrogenated 
A)  hydrophobic 
B)  hydrophilic 
C)  hard 
D)  saponified 
E)  hydrogenated

Question 17

Which of the following terms best describes the compound below?

Accepted Answer

A)  a diterpene 
B)  an unsaturated triglyceride 
C)  a monoterpene 
D)  a complex lipid 
E)  a steroid 
A)  a diterpene 
B)  an unsaturated triglyceride 
C)  a monoterpene 
D)  a complex lipid 
E)  a steroid

Question 18

Which of the following statements correctly describe(s) the relationship between the structure of a fatty acid and its melting point?

Accepted Answer

A)  Saturated fatty acids have melting points that increase gradually with their molecular weights. 
B)  The presence of a trans double bond in the fatty acid has a greater effect on its melting point than does the presence of a cis double bond. 
C)  As the number of double bonds in a fatty acid increases, its melting point decreases. 
D)  both A and C 
E)  A, B, and C 
A)  Saturated fatty acids have melting points that increase gradually with their molecular weights. 
B)  The presence of a trans double bond in the fatty acid has a greater effect on its melting point than does the presence of a cis double bond. 
C)  As the number of double bonds in a fatty acid increases, its melting point decreases. 
D)  both A and C 
E)  A, B, and C

Question 19

Which of the following terms best describes the compound below?
CH3(CH2)12CO2H

Accepted Answer

A)  a triglyceride 
B)  a fatty acid 
C)  a wax 
D)  a prostaglandin 
E)  a phosphatidic acid 
A)  a triglyceride 
B)  a fatty acid 
C)  a wax 
D)  a prostaglandin 
E)  a phosphatidic acid

Question 20

What is a micelle?

Accepted Answer

A micelle is a spherical clust

Exam 25: Lipids

Why are fats more efficient sources of long-term energy than carbohydrates?

Name the compound whose formula is CH3(CH2)12CO2H.

Which of the following terms best describes the compound below?

What is an emulsion?

What is the difference between a soap and detergent?

Which best describes the lipid shown below?

What class of lipids functions to control blood pressure, inflammatory responses, and the clotting of blood?

Which of the following species would be expected to be insoluble in water? (More than one answer is possible.)

How many molecules of fatty acid are needed to produce one molecule of a fat or oil?

How can the degree of unsaturation of an oil be gauged using a solution of bromine in carbon tetrachloride?

When a vegetable oil is partially hydrogenated, how is its structure altered and how is its melting point affected?

Draw the basic structure found in prostaglandins.

Provide the major organic product of the reaction shown below.

Name two of the three predominant groups of simple lipids.

________ is a common biological intermediate and is the biosynthetic precursor to other steroids.

Which of the following terms best describes the exterior surface of a soap micelle in water?

Which of the following terms best describes the compound below?

Which of the following statements correctly describe(s) the relationship between the structure of a fatty acid and its melting point?

Which of the following terms best describes the compound below? CH3(CH2)12CO2H

What is a micelle?

Structure and Bonding

Acids and Bases; Functional Groups

Structure and Stereochemistry of Alkanes

The Study of Chemical Reactions

Stereochemistry

Alkyl Halides; Nucleophilic Substitution

Structure and Synthesis of Alkenes; Elimination

Reactions of Alkenes

Structure and Synthesis of Alcohols

Reactions of Alcohols

Infrared Spectroscopy and Mass Spectrometry

Nuclear Magnetic Resonance Spectroscopy

Ethers, Epoxides, and Thioethers

Conjugated Systems, Orbital Symmetry, and Ultraviolet Spectroscopy

Aromatic Compounds

Reactions of Aromatic Compounds

Ketones and Aldehydes

Amines

Carboxylic Acids

Carboxylic Acid Derivatives

Condensations and Alpha Substitutions of Carboxyl Compounds

Carbohydrates and Nucleic Acids

Amino Acids, Peptides, and Proteins

Synthetic Polymers

Filters

Name the compound whose formula is CH₃(CH₂)₁₂CO₂H.

Which of the following terms best describes the compound below? CH₃(CH₂)₁₂CO₂H