Question 1

The products of the saponification of a fat are

Accepted Answer

A)  the esters of fatty acids. 
B)  fatty acids and glycerol. 
C)  salts of fatty acids. 
D)  salts of fatty acids and glycerol. 
E)  phospholipids. 
A)  the esters of fatty acids. 
B)  fatty acids and glycerol. 
C)  salts of fatty acids. 
D)  salts of fatty acids and glycerol. 
E)  phospholipids.

Question 2

Steroids do not contain fatty acids.

Accepted Answer

A) True 
 B)False

Question 3

What phospholipid contains fatty acids but NOT glycerol?

Accepted Answer

A)  lecithin 
B)  glycolipid 
C)  sphingolipid 
D)  cephalin 
E)  corticosteroid 
A)  lecithin 
B)  glycolipid 
C)  sphingolipid 
D)  cephalin 
E)  corticosteroid

Question 4

Choose the polyunsaturated triacylglycerol from the compounds below.

Accepted Answer

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

Question 5

A polyunsaturated fatty acid contains more than one

Accepted Answer

A)  carboxyl group. 
B)  hydroxyl group. 
C)  carbonyl group. 
D)  long carbon chain. 
E)  double bond. 
A)  carboxyl group. 
B)  hydroxyl group. 
C)  carbonyl group. 
D)  long carbon chain. 
E)  double bond.

Question 6

The catalyst needed for saponification is H+ ion.

Accepted Answer

A) True 
 B)False

Question 7

Bile salts are among the lipid class known as __________.

Accepted Answer

A)  sphingosides 
B)  prostaglandins 
C)  cerebrosides 
D)  triacylglycerols 
E)  steroids 
A)  sphingosides 
B)  prostaglandins 
C)  cerebrosides 
D)  triacylglycerols 
E)  steroids

Question 8

Commercially, liquid vegetable oils are converted to solid fats such as margarine by

Accepted Answer

A)  hydrogenation. 
B)  hydrolysis. 
C)  hydration. 
D)  oxidation. 
E)  saponification. 
A)  hydrogenation. 
B)  hydrolysis. 
C)  hydration. 
D)  oxidation. 
E)  saponification.

Question 9

The interior of a lipid bilayer is the hydrophilic region.

Accepted Answer

A) True 
 B)False

Question 10

One function of phospholipids is to provide structure to biomembranes.

Accepted Answer

A) True 
 B)False

Question 11

Which statement is NOT true?

Accepted Answer

A)  Lipids are found in cell membranes. 
B)  Lipids are soluble in organic solvents. 
C)  There are many different types of lipids. 
D)  All lipids contain fatty acids. 
E)  Some hormones are lipids. 
A)  Lipids are found in cell membranes. 
B)  Lipids are soluble in organic solvents. 
C)  There are many different types of lipids. 
D)  All lipids contain fatty acids. 
E)  Some hormones are lipids.

Question 12

Synthesis of cholesterol and bile salts takes place in the

Accepted Answer

A)  liver. 
B)  gall bladder. 
C)  small intestine. 
D)  large intestine. 
E)  pancreas. 
A)  liver. 
B)  gall bladder. 
C)  small intestine. 
D)  large intestine. 
E)  pancreas.

Question 13

For the question(s) that follow, identify the class of lipid to which each of the following molecules belongs.
-

Accepted Answer

A)  glycerophospholipid 
B)  triacylglycerol 
C)  glycosphingolipid 
D)  steroid 
E)  wax 
A)  glycerophospholipid 
B)  triacylglycerol 
C)  glycosphingolipid 
D)  steroid 
E)  wax

Question 14

Choose the saturated fatty acid from the compounds below.

Accepted Answer

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

Question 15

One inner component of a typical cell membrane is

Accepted Answer

A)  glucose. 
B)  cholesterol. 
C)  glycine. 
D)  palmitic acid. 
E)  glycerol. 
A)  glucose. 
B)  cholesterol. 
C)  glycine. 
D)  palmitic acid. 
E)  glycerol.

Question 16

For the question(s) that follow, identify the class of lipid to which each of the following molecules belongs.
-

Accepted Answer

A)  wax 
B)  triacylglycerol 
C)  glycerolphospholipid 
D)  glycosphingolipid 
E)  steroid 
A)  wax 
B)  triacylglycerol 
C)  glycerolphospholipid 
D)  glycosphingolipid 
E)  steroid

Question 17

The steroid hormone present in birth control pills is

Accepted Answer

A)  aldosterone. 
B)  progesterone. 
C)  cortisone. 
D)  estrogen. 
E)  norethindrone. 
A)  aldosterone. 
B)  progesterone. 
C)  cortisone. 
D)  estrogen. 
E)  norethindrone.

Question 18

The components in the following glycerophospholipid are

Accepted Answer

A)  sphingosine, palmitic acid, phosphate, and choline. 
B)  sphingosine, palmitic acid, phosphate, and serine. 
C)  glycerol, palmitic acid, phosphate, and ethanolamine. 
D)  glycerol, palmitic acid, phosphate, and galactose. 
E)  sphingosine, palmitic acid, phosphate, and ethanolamine. 
A)  sphingosine, palmitic acid, phosphate, and choline. 
B)  sphingosine, palmitic acid, phosphate, and serine. 
C)  glycerol, palmitic acid, phosphate, and ethanolamine. 
D)  glycerol, palmitic acid, phosphate, and galactose. 
E)  sphingosine, palmitic acid, phosphate, and ethanolamine.

Question 19

Which of the following is a fatty acid which is a solid at room temperature?

Accepted Answer

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

Question 20

The tail of a triacylglycerol is the nonpolar end.

Accepted Answer

A) True 
 B)False

Exam 17: Lipids

The products of the saponification of a fat are

Steroids do not contain fatty acids.

What phospholipid contains fatty acids but NOT glycerol?

Choose the polyunsaturated triacylglycerol from the compounds below.

A polyunsaturated fatty acid contains more than one

The catalyst needed for saponification is H+ ion.

Bile salts are among the lipid class known as __________.

Commercially, liquid vegetable oils are converted to solid fats such as margarine by

The interior of a lipid bilayer is the hydrophilic region.

One function of phospholipids is to provide structure to biomembranes.

Which statement is NOT true?

Synthesis of cholesterol and bile salts takes place in the

For the question(s) that follow, identify the class of lipid to which each of the following molecules belongs. -

Choose the saturated fatty acid from the compounds below.

One inner component of a typical cell membrane is

For the question(s) that follow, identify the class of lipid to which each of the following molecules belongs. -

The steroid hormone present in birth control pills is

The components in the following glycerophospholipid are

Which of the following is a fatty acid which is a solid at room temperature?

The tail of a triacylglycerol is the nonpolar end.

Chemistry and Measurements

Energy and Matter

Atoms and Elements

Nuclear Chemistry

Compounds and Their Bonds

Chemical Reactions and Quantities

Gases

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Reaction Rates and Chemical Equilibrium

Acids and Bases

Introduction to Organic Chemistry: Alkanes

Alkenes, Alkynes, and Aromatic Compounds

Alcohols, Phenols, Thiols, and Ethers

Aldehydes, Ketones, and Chiral Molecules

Carbohydrates

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Metabolic Pathways for Lipids and Amino Acids

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The catalyst needed for saponification is H⁺ ion.