Question 1

Cholesterol, the most abundant steroid in the body, can not be found in which of the following sources?

Accepted Answer

A) green beans 
B) eggs 
C) butter 
D) milk 
A) green beans 
B) eggs 
C) butter 
D) milk A

Question 2

The class of lipids known as prostaglandins is derived from the compound shown below.

Accepted Answer

A) True 
 B)False  True

Question 3

​ Which of the following biological compounds is soluble only in nonpolar solvents?

Accepted Answer

A) Carbohydrates 
B) Vitamins 
C) Proteins 
D) Lipids 
A) Carbohydrates 
B) Vitamins 
C) Proteins 
D) Lipids D

Question 4

Which of the following class of materials is associated with the treatment of asthma?

Accepted Answer

A) sphingolipids 
B) phosphoglycerides 
C) prostoglandins 
D) tirglycerides 
A) sphingolipids 
B) phosphoglycerides 
C) prostoglandins 
D) tirglycerides

Question 5

The hormone that helps to regulate the level of sodium ions in the blood is _____.

Accepted Answer

A) aldosterone 
B) vasopressin 
C) insulin 
D) progesterone 
A) aldosterone 
B) vasopressin 
C) insulin 
D) progesterone

Question 6

Fatty acids present as components in cell membrane are often _____.

Accepted Answer

A) saturated 
B) unsaturated 
C) short chained 
D) branched 
A) saturated 
B) unsaturated 
C) short chained 
D) branched

Question 7

Phospholipids found in plants are produced by those cells exposed to air in order to keep the plant from losing too much water.

Accepted Answer

A) True 
 B)False

Question 8

The most common ring found in a prostaglandin is _____.

Accepted Answer

A) cyclohexane 
B) cyclopentane 
C) phenanthrene 
D) pyran 
A) cyclohexane 
B) cyclopentane 
C) phenanthrene 
D) pyran

Question 9

Waxes differ from fats and oils in that

Accepted Answer

A) no fatty acids are produced upon hydrolysis. 
B) they are not easily hydrolyzed. 
C) the alcohol produced upon hydrolysis is not glycerol. 
D) More than one response is correct. 
A) no fatty acids are produced upon hydrolysis. 
B) they are not easily hydrolyzed. 
C) the alcohol produced upon hydrolysis is not glycerol. 
D) More than one response is correct.

Question 10

Glycolipids are abundant in which tissue?

Accepted Answer

A) muscle 
B) brain 
C) heart 
D) liver 
A) muscle 
B) brain 
C) heart 
D) liver

Question 11

​ A _____ is a spherical cluster of molecules in which the polar portions of the molecules are on the surface and the nonpolar portions are located in the interior of the structure away from water.

Accepted Answer

The answer of ​ A _____ is a spherical cluster...

Question 12

The most abundant steroid in the body is cholesterol.

Accepted Answer

A) True 
 B)False

Question 13

Fatty acid micelles in water usually have the hydrophilic groups on the outside of the structure.

Accepted Answer

A) True 
 B)False

Question 14

What type of compound is the second product in the reaction shown below?

Accepted Answer

A) fatty acid salt 
B) ester 
C) alcohol 
D) fatty acid 
A) fatty acid salt 
B) ester 
C) alcohol 
D) fatty acid

Question 15

Which of the following hormones is an anabolic steroid?

Accepted Answer

A) estrogen 
B) testosterone 
C) progesterone 
D) estradoil 
A) estrogen 
B) testosterone 
C) progesterone 
D) estradoil

Question 16

A lipid is hydrolyzed to form a mixture of fatty acids, glycerol and phosphate as the products. The lipid would be classified as ______.

Accepted Answer

A) simple 
B) complex 
C) nonsaponifiable 
D) miscellaneous 
A) simple 
B) complex 
C) nonsaponifiable 
D) miscellaneous

Question 17

Cell membranes are about 60% lipids.

Accepted Answer

A) True 
 B)False

Question 18

How would the following structure be best classified?

Accepted Answer

A) fatty acid 
B) wax 
C) prostaglandin 
D) sphingolipid 
A) fatty acid 
B) wax 
C) prostaglandin 
D) sphingolipid

Question 19

The glycolipids are different from the other lipids because they are found exclusively in the liver.

Accepted Answer

A) True 
 B)False

Question 20

Consider the figure below.  To produce a cephalin, which of the species listed below might be used to replace the fatty acid shown in the box?

Accepted Answer

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

Exam 18: Lipids

Cholesterol, the most abundant steroid in the body, can not be found in which of the following sources?

The class of lipids known as prostaglandins is derived from the compound shown below.

​ Which of the following biological compounds is soluble only in nonpolar solvents?

Which of the following class of materials is associated with the treatment of asthma?

The hormone that helps to regulate the level of sodium ions in the blood is _____.

Fatty acids present as components in cell membrane are often _____.

Phospholipids found in plants are produced by those cells exposed to air in order to keep the plant from losing too much water.

The most common ring found in a prostaglandin is _____.

Waxes differ from fats and oils in that

Glycolipids are abundant in which tissue?

​ A _____ is a spherical cluster of molecules in which the polar portions of the molecules are on the surface and the nonpolar portions are located in the interior of the structure away from water.

The most abundant steroid in the body is cholesterol.

Fatty acid micelles in water usually have the hydrophilic groups on the outside of the structure.

What type of compound is the second product in the reaction shown below?

Which of the following hormones is an anabolic steroid?

A lipid is hydrolyzed to form a mixture of fatty acids, glycerol and phosphate as the products. The lipid would be classified as ______.

Cell membranes are about 60% lipids.

How would the following structure be best classified?

The glycolipids are different from the other lipids because they are found exclusively in the liver.

Consider the figure below. To produce a cephalin, which of the species listed below might be used to replace the fatty acid shown in the box?

Matter, Measurements, and Calculations

Atoms and Molecules

Electronic Structure and the Periodic Law

Forces Between Particles

Chemical Reactions

The States of Matter

Solutions and Colloids

Reaction Rates and Equilibrium

Acids, Bases, and Salts

Radioactivity and Nuclear Processes

Organic Compounds: Alkanes

Unsaturated Hydrocarbons

Alcohols, Phenols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Esters

Amines and Amides

Carbohydrates

Proteins

Enzymes

Nucleic Acids and Protein Synthesis

Nutrition and Energy for Life

Carbohydrate Metabolism

Lipid and Amino Acid Metabolism

Body Fluids

Filters

Which of the following biological compounds is soluble only in nonpolar solvents?

A _____ is a spherical cluster of molecules in which the polar portions of the molecules are on the surface and the nonpolar portions are located in the interior of the structure away from water.