Question 1

What is the name of the reaction of triglycerides with a base?

Accepted Answer

A) Esterification 
B) Transesterification 
C) Ozonolysis 
D) Saponification 
A) Esterification 
B) Transesterification 
C) Ozonolysis 
D) Saponification

Question 2

Which of the following compounds is not a lipid?

Accepted Answer

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

Question 3

Solid fats are generally from what source?

Accepted Answer

A) Vegetables 
B) Starches 
C) Legumes 
D) Animals 
A) Vegetables 
B) Starches 
C) Legumes 
D) Animals

Question 4

Patchouli alcohol is an example of a terpene.How is this molecule classified?

Accepted Answer

A) Monoterpene 
B) Diterpene 
C) Triterpene 
D) Sesquiterpene 
A) Monoterpene 
B) Diterpene 
C) Triterpene 
D) Sesquiterpene

Question 5

Which of the following fatty acids has the lowest melting point?

Accepted Answer

A) Palmitic acid 
B) Arachidic acid 
C) Stearic acid 
D) Lauric acid 
A) Palmitic acid 
B) Arachidic acid 
C) Stearic acid 
D) Lauric acid

Question 6

Sphingomyelins are a major component of the myelin sheath.Damage to the myelin sheath results in such diseases as multiple sclerosis.Which compound below corresponds to a sphingomyelin?

Accepted Answer

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

Question 7

Which of the following compounds is not a hydrolyzable lipid?

Accepted Answer

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

Question 8

Which of the following fatty acids is not present in natural fats and oils?

Accepted Answer

A) Hexadecanoic acid 
B) Heptadecanoic acid 
C) Octadecanoic acid 
D) None of the choices 
A) Hexadecanoic acid 
B) Heptadecanoic acid 
C) Octadecanoic acid 
D) None of the choices

Question 9

What is the result of the oxidation of arachidonic acid with O2 by cyclooxygenase?

Accepted Answer

A) It results in the synthesis of prostaglandins,thromboxanes,and prostacyclins. 
B) It results in the synthesis of fat-soluble vitamins from sphingomyelins. 
C) It results in the synthesis of phosphoacylglycerols. 
D) It is an important step in the synthesis of lipids that form the lipid bilayer. 
A) It results in the synthesis of prostaglandins,thromboxanes,and prostacyclins. 
B) It results in the synthesis of fat-soluble vitamins from sphingomyelins. 
C) It results in the synthesis of phosphoacylglycerols. 
D) It is an important step in the synthesis of lipids that form the lipid bilayer.

Question 10

Which of the following compounds is a steroid?

Accepted Answer

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

Question 11

Which of the following is not one of the three main categories of hydrolyzable lipids?

Accepted Answer

A) Waxes 
B) Steroids 
C) Triacylglycerols 
D) Phospholipids 
A) Waxes 
B) Steroids 
C) Triacylglycerols 
D) Phospholipids

Question 12

Which of the following is a fat soluble vitamin?

Accepted Answer

A) Vitamin A 
B) Vitamin D3 
C) Vitamin K 
D) All of these choices are correct 
A) Vitamin A 
B) Vitamin D3 
C) Vitamin K 
D) All of these choices are correct

Question 13

Evaluate the following statement: The terpene structure shown is a hydrolysable lipid.

Accepted Answer

A) True,because it contains an alcohol functional group. 
B) False,because alcohol and aldehyde moieties are not hydrolysable. 
C) True,because there are three polar groups and only 12 total carbon atoms. 
D) False,because there is too much steric repulsion from the alcohol and aldehyde moieties. 
A) True,because it contains an alcohol functional group. 
B) False,because alcohol and aldehyde moieties are not hydrolysable. 
C) True,because there are three polar groups and only 12 total carbon atoms. 
D) False,because there is too much steric repulsion from the alcohol and aldehyde moieties.

Question 14

What is (are)the biological precursor(s)for the formation of the steroid skeleton found in cholesterol?

Accepted Answer

A) Cyclohexane 
B) Squalene 
C) Triacylglycerols 
D) Arachadonic acid 
A) Cyclohexane 
B) Squalene 
C) Triacylglycerols 
D) Arachadonic acid

Question 15

What is the purpose of vitamin K?

Accepted Answer

A) Energy storage 
B) Blood clotting 
C) Photosynthesis 
D) Hydrogenation 
A) Energy storage 
B) Blood clotting 
C) Photosynthesis 
D) Hydrogenation

Question 16

How can an unsaturated fatty acid be converted into a saturated fatty acid?

Accepted Answer

A) Hydrogenation 
B) Hydration 
C) Ozonolysis 
D) Hydrolysis 
A) Hydrogenation 
B) Hydration 
C) Ozonolysis 
D) Hydrolysis

Question 17

How many isoprene units are in the following molecule?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
A) 1 
B) 2 
C) 3 
D) 4

Question 18

From the statements below,pick out the one that is not correct for fat-soluble vitamins.

Accepted Answer

A) Fat-soluble vitamins are classified as lipids. 
B) Fat-soluble vitamins are a group of biologically active compounds containing 20 carbon atoms. 
C) Fat-soluble vitamins are required in small quantities for normal metabolism. 
D) Fat-soluble vitamins are stored in fat cells for use when they are needed. 
A) Fat-soluble vitamins are classified as lipids. 
B) Fat-soluble vitamins are a group of biologically active compounds containing 20 carbon atoms. 
C) Fat-soluble vitamins are required in small quantities for normal metabolism. 
D) Fat-soluble vitamins are stored in fat cells for use when they are needed.

Question 19

Which of the following are simple lipids?

Accepted Answer

A) Steroids 
B) Terpenes 
C) Waxes 
D) Prostaglandins 
A) Steroids 
B) Terpenes 
C) Waxes 
D) Prostaglandins

Question 20

What happens to the melting point in fatty acids as the unsaturation increases?

Accepted Answer

A) It increases 
B) It decreases. 
C) There is no direct correlation between unsaturation and melting point. 
D) The melting point stays the same. 
A) It increases 
B) It decreases. 
C) There is no direct correlation between unsaturation and melting point. 
D) The melting point stays the same.

Exam 29: Lipids

What is the name of the reaction of triglycerides with a base?

Which of the following compounds is not a lipid?

Solid fats are generally from what source?

Patchouli alcohol is an example of a terpene.How is this molecule classified?

Which of the following fatty acids has the lowest melting point?

Sphingomyelins are a major component of the myelin sheath.Damage to the myelin sheath results in such diseases as multiple sclerosis.Which compound below corresponds to a sphingomyelin?

Which of the following compounds is not a hydrolyzable lipid?

Which of the following fatty acids is not present in natural fats and oils?

What is the result of the oxidation of arachidonic acid with O2 by cyclooxygenase?

Which of the following compounds is a steroid?

Which of the following is not one of the three main categories of hydrolyzable lipids?

Which of the following is a fat soluble vitamin?

Evaluate the following statement: The terpene structure shown is a hydrolysable lipid.

What is (are)the biological precursor(s)for the formation of the steroid skeleton found in cholesterol?

What is the purpose of vitamin K?

How can an unsaturated fatty acid be converted into a saturated fatty acid?

How many isoprene units are in the following molecule?

From the statements below,pick out the one that is not correct for fat-soluble vitamins.

Which of the following are simple lipids?

What happens to the melting point in fatty acids as the unsaturation increases?

Structure and Bonding

Acids and Bases

Introduction to Organic Molecules and Functional Groups

Alkanes

Stereochemistry

Understanding Organic Reactions

Alkyl Halides and Nucleophilic Substitution

Alkyl Halides and Elimination Reactions

Alcohols,ethers,and Related Compounds

Alkenes and Addition Reactions

Alkynes and Synthesis

Oxidation and Reduction

Radical Reactions

Conjugation,resonance,and Dienes

Benzene and Aromatic Compounds

Reactions of Aromatic Compounds

Introduction to Carbonyl Chemistry; Organometallic Reagents; Oxidation and Reduction

Aldehydes and Ketones - Nucleophilic Addition

Carboxylic Acids and the Acidity of the O-H Bond

Carboxylic Acids and Their Derivatives Nucleophilic Acyl Substitution

Substitution Reactions of Carbonyl Compounds at the a Carbon

Carbonyl Condensation Reactions

Amines

Carbon-Carbon Bond-Forming Reactions in Organic Synthesis

Pericyclic Reactions

Carbohydrates

Amino Acids and Proteins

Synthetic Polymers

Spectroscopy A: Mass Spectrometry

Spectroscopy B: Infrared Spectroscopy

Spectroscopy C: Nuclear Magnetic Resonance Spectroscopy

Filters

What is the result of the oxidation of arachidonic acid with O₂ by cyclooxygenase?