Question 1

Which is a trans fat?

Accepted Answer

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

Question 2

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 3

Cell membranes are made up of a structure called a(n)_____.

Accepted Answer

The answer of Cell membranes are made up of a...

Question 4

Which is not true about prostaglandins?

Accepted Answer

A) Prostaglandins decrease gastric secretions. 
B) Prostaglandins decrease inflammation. 
C) Prostaglandins inhibit blood platelet aggregation. 
D) Prostaglandins stimulate uterine contractions. 
E) Prostaglandins relax the smooth muscles of the uterus. 
A) Prostaglandins decrease gastric secretions. 
B) Prostaglandins decrease inflammation. 
C) Prostaglandins inhibit blood platelet aggregation. 
D) Prostaglandins stimulate uterine contractions. 
E) Prostaglandins relax the smooth muscles of the uterus.

Question 5

How many triacylglycerols can be prepared from two different fatty acids?

Accepted Answer

A) 2 
B) 4 
C) 6 
D) 8 
A) 2 
B) 4 
C) 6 
D) 8

Question 6

Hydrolysis of the triacylglycerol below provides the indicated products.

Accepted Answer

A) True 
 B)False

Question 7

Which statement correctly describes the hydroxyl (-OH)groups found in the steroid prednisone?

Accepted Answer

A) There is one primary alcohol group and one secondary alcohol group. 
B) There is one secondary alcohol group and one tertiary alcohol group. 
C) There is one primary alcohol group and one tertiary alcohol group. 
D) There is one tertiary alcohol group and one carboxylic acid. 
A) There is one primary alcohol group and one secondary alcohol group. 
B) There is one secondary alcohol group and one tertiary alcohol group. 
C) There is one primary alcohol group and one tertiary alcohol group. 
D) There is one tertiary alcohol group and one carboxylic acid.

Question 8

The contents on a box of cupcakes lists partially hydrogenated soybean oil. Partial hydrogenation of soybean oil has what effect?

Accepted Answer

A) It produces fatty acid salts. 
B) It decreases the percent of unsaturation that is present. 
C) It hydrolyzes the triacylglycerol. 
D) It increases the number of fatty acids present. 
A) It produces fatty acid salts. 
B) It decreases the percent of unsaturation that is present. 
C) It hydrolyzes the triacylglycerol. 
D) It increases the number of fatty acids present.

Question 9

Cetyl palmitate is a component of spermaceti wax isolated from the heads of sperm whales, and is used in cosmetics. In which solvent would cetyl palmitate be expected to have the greatest solubility?

Accepted Answer

A) acetic acid 
B) ethanol 
C) hexane 
D) water 
A) acetic acid 
B) ethanol 
C) hexane 
D) water

Question 10

Estradiol and estrone are two estrogen hormones synthesized in the _____.

Accepted Answer

The answer of Estradiol and estrone are two estrogen hormones...

Question 11

The most common unsaturated fatty acids are palmitic and stearic acid.

Accepted Answer

A) True 
 B)False

Question 12

Two common types of phospholipids are _____ and _____.

Accepted Answer

phosphoacy

Question 13

The three-dimensional structure of a trans triacylglycerol shows its similarity to saturated triacylglycerols.

Accepted Answer

A) True 
 B)False

Question 14

Triacylglycerols form lipid bilayers.

Accepted Answer

A) True 
 B)False

Question 15

Which statement is not true?

Accepted Answer

A) Vitamin A is obtained from liver, oily fish, and dairy products. 
B) Vitamin E is an oxidizing agent, oxidizing the unsaturated side chains in fatty acids. 
C) A severe deficiency of vitamin K leads to excessive and sometimes fatal bleeding, because of inadequate blood clotting. 
D) Vitamin D helps regulate both calcium and phosphorus metabolism. 
A) Vitamin A is obtained from liver, oily fish, and dairy products. 
B) Vitamin E is an oxidizing agent, oxidizing the unsaturated side chains in fatty acids. 
C) A severe deficiency of vitamin K leads to excessive and sometimes fatal bleeding, because of inadequate blood clotting. 
D) Vitamin D helps regulate both calcium and phosphorus metabolism.

Question 16

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 17

Which is not an example of a lipid?

Accepted Answer

A) phenol 
B) triacylglycerol 
C) cholesterol 
D) vitamin E 
A) phenol 
B) triacylglycerol 
C) cholesterol 
D) vitamin E

Question 18

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

Question 19

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

Accepted Answer

A) True 
 B)False

Question 20

The compound below is the amino alcohol known as sphingosine, which forms the backbone of sphingomyelins.

Accepted Answer

A) True 
 B)False

Exam 19: Lipids

Which is a trans fat?

Which is a nonhydrolyzable lipid?

Cell membranes are made up of a structure called a(n)_____.

Which is not true about prostaglandins?

How many triacylglycerols can be prepared from two different fatty acids?

Hydrolysis of the triacylglycerol below provides the indicated products.

Which statement correctly describes the hydroxyl (-OH)groups found in the steroid prednisone?

The contents on a box of cupcakes lists partially hydrogenated soybean oil. Partial hydrogenation of soybean oil has what effect?

Cetyl palmitate is a component of spermaceti wax isolated from the heads of sperm whales, and is used in cosmetics. In which solvent would cetyl palmitate be expected to have the greatest solubility?

Estradiol and estrone are two estrogen hormones synthesized in the _____.

The most common unsaturated fatty acids are palmitic and stearic acid.

Two common types of phospholipids are _____ and _____.

The three-dimensional structure of a trans triacylglycerol shows its similarity to saturated triacylglycerols.

Triacylglycerols form lipid bilayers.

Which statement is not true?

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?

Which is not an example of a lipid?

Complete metabolism of a triacylglycerol yields which of the following?

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

The compound below is the amino alcohol known as sphingosine, which forms the backbone of sphingomyelins.

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

Digestion and the Conversion of Food Into Energy

Carbohydrate, Lipid, and Protein Metabolism

Filters

Two common types of phospholipids are _ and _.