Question 1

Hydrolysis of triacylglycerols in the body occurs with the aid of which reagent?

Accepted Answer

A) Enzymes 
B) Bases 
C) Oxidizing agents 
D) Sulfuric acid 
A) Enzymes 
B) Bases 
C) Oxidizing agents 
D) Sulfuric acid A

Question 2

Which vitamin is not strictly a vitamin because it can be synthesized in the body from cholesterol?

Accepted Answer

A) Vitamin A 
B) Vitamin E 
C) Vitamin K 
D) Vitamin D 
A) Vitamin A 
B) Vitamin E 
C) Vitamin K 
D) Vitamin D D

Question 3

Complete metabolism of a triacylglycerol yields which of the following?

Accepted Answer

A) Glycerol,fatty acids,and a great deal of energy 
B) Fatty acids and a great deal of energy 
C) Fatty acids,H2O,and a great deal of energy 
D) CO2,H2O,and a great deal of energy 
A) Glycerol,fatty acids,and a great deal of energy 
B) Fatty acids and a great deal of energy 
C) Fatty acids,H2O,and a great deal of energy 
D) CO2,H2O,and a great deal of energy D

Question 4

An individual can survive on a completely fat-free diet.

Accepted Answer

A) True 
 B)False

Question 5

Saturated fatty acids have no double bonds in their long hydrocarbon chains.

Accepted Answer

A) True 
 B)False

Question 6

Which is a nonhydrolyzable lipid?

Accepted Answer

A) A triacylglycerol 
B) A wax 
C) An eicosanoid 
D) A phospholipid 
A) A triacylglycerol 
B) A wax 
C) An eicosanoid 
D) A phospholipid

Question 7

The structure of lipids is ________.

Accepted Answer

A) dominated by ionic regions 
B) dominated by hydrophilic regions 
C) dominated by hydrophobic regions 
D) equally dominated by hydrophilic and hydrophobic regions 
A) dominated by ionic regions 
B) dominated by hydrophilic regions 
C) dominated by hydrophobic regions 
D) equally dominated by hydrophilic and hydrophobic regions

Question 8

Vitamins are organic compounds required in small quantities for normal metabolism.

Accepted Answer

A) True 
 B)False

Question 9

Zileuton (Zyflo)treats the cause of asthma,not just its symptoms,by blocking the synthesis of leukotriene C4.

Accepted Answer

A) True 
 B)False

Question 10

Soap is prepared by the acid hydrolysis (saponification)of a triacylglycerol.

Accepted Answer

A) True 
 B)False

Question 11

High-density lipoproteins (HDLs)transport cholesterol from where it is synthesized,to the tissues.

Accepted Answer

A) True 
 B)False

Question 12

Which structure is a prostaglandin?

Accepted Answer

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

Question 13

Phosphoacylglycerols are less soluble in water than triacylglycerols.

Accepted Answer

A) True 
 B)False

Question 14

Lovastatin (structure shown)was the first statin drug to be marketed and used for lowering blood cholesterol. How many chirality centers are present in lovastatin?

Accepted Answer

A) 4 
B) 7 
C) 8 
D) 9 
E) There are more than ten (10)chirality centers in lovastatin. 
A) 4 
B) 7 
C) 8 
D) 9 
E) There are more than ten (10)chirality centers in lovastatin.

Question 15

The triacylglycerol shown below is expected to be a liquid at room temperature.

Accepted Answer

A) True 
 B)False

Question 16

The compound below is a mixed triacylglycerol formed from lauric,myristic,and linoleic acids.

Accepted Answer

A) True 
 B)False

Question 17

Which structural feature is not found in sphingomyelins?

Accepted Answer

A) An amide bond 
B) A glycerol backbone 
C) A phosphodiester 
D) An alcohol 
A) An amide bond 
B) A glycerol backbone 
C) A phosphodiester 
D) An alcohol

Question 18

Lipids known as ________ provide a protective coating for plants and animals.

Accepted Answer

The answer of Lipids known as ________ provide a protective...

Question 19

Stearin is a triglyceride derived from three units of stearic acid,an 18-carbon fatty acid. Which of the structures below represents stearin?

Accepted Answer

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

Question 20

Which is a trans fat?

Accepted Answer

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

Exam 19: Lipids

Hydrolysis of triacylglycerols in the body occurs with the aid of which reagent?

Which vitamin is not strictly a vitamin because it can be synthesized in the body from cholesterol?

Complete metabolism of a triacylglycerol yields which of the following?

An individual can survive on a completely fat-free diet.

Saturated fatty acids have no double bonds in their long hydrocarbon chains.

Which is a nonhydrolyzable lipid?

The structure of lipids is ________.

Vitamins are organic compounds required in small quantities for normal metabolism.

Zileuton (Zyflo)treats the cause of asthma,not just its symptoms,by blocking the synthesis of leukotriene C4.

Soap is prepared by the acid hydrolysis (saponification)of a triacylglycerol.

High-density lipoproteins (HDLs)transport cholesterol from where it is synthesized,to the tissues.

Which structure is a prostaglandin?

Phosphoacylglycerols are less soluble in water than triacylglycerols.

Lovastatin (structure shown)was the first statin drug to be marketed and used for lowering blood cholesterol. How many chirality centers are present in lovastatin?

The triacylglycerol shown below is expected to be a liquid at room temperature.

The compound below is a mixed triacylglycerol formed from lauric,myristic,and linoleic acids.

Which structural feature is not found in sphingomyelins?

Lipids known as ________ provide a protective coating for plants and animals.

Stearin is a triglyceride derived from three units of stearic acid,an 18-carbon fatty acid. Which of the structures below represents stearin?

Which is a trans fat?

Matter and Measurement

Atoms and the Periodic Table

Ionic Compounds

Covalent Compounds

Chemical Reactions

Energy Changes,reaction Rates,and Equilibrium

Gases,liquids,and Solids

Solutions

Acids and Bases

Nuclear Chemistry

Introduction to Organic Molecules and Functional Groups

Alkanes

Unsaturated Hydrocarbons

Organic Compounds That Contain Oxygen,halogen,or Sulfur

The Three-Dimensional Shape of Molecules

Aldehydes and Ketones

Carboxylic Acids,esters,and Amides

Amines and Neurotransmitters

Carbohydrates

Amino Acids,proteins,and Enzymes

Nucleic Acids and Protein Synthesis

Metabolism and Energy Production

Carbohydrate,lipid,and Protein Metabolism

Filters

Zileuton (Zyflo)treats the cause of asthma,not just its symptoms,by blocking the synthesis of leukotriene C₄.