Question 1

The following compound is best classified as a(n) _________.

Accepted Answer

A)  simple lipid 
B)  fat 
C)  cephalin 
D)  wax 
E)  oil 
A)  simple lipid 
B)  fat 
C)  cephalin 
D)  wax 
E)  oil

Question 2

In naturally occurring steroids mostly the B-C ring fusion is ______and the C-D ring fusion is ______.

Accepted Answer

A)  cis, trans 
B)  cis, cis 
C)  trans, cis 
D)  trans, trans 
E)  both cis and trans, both cis and trans 
A)  cis, trans 
B)  cis, cis 
C)  trans, cis 
D)  trans, trans 
E)  both cis and trans, both cis and trans

Question 3

Phosphoglycerides differ from triglycerides in that one of the three fatty acid residues is replaced by a(n) ______ group.

Accepted Answer

A)  thioester 
B)  phosphoester 
C)  thiol 
D)  alcohol 
E)  ester 
A)  thioester 
B)  phosphoester 
C)  thiol 
D)  alcohol 
E)  ester

Question 4

Provide the structure of an optically active triglyceride that produced two myristic acid residues and an oleic acid residue when heated in the presence of an acid.

Accepted Answer

The answer of Provide the structure of an optically active...

Question 5

The rancid smell from unsaturated oils is due to ______________.

Accepted Answer

A)  the reduction of the ester group 
B)  the oxidation of the ester group 
C)  the oxidation of the alkene 
D)  the reduction of the alkene 
E)  autooxidation 
A)  the reduction of the ester group 
B)  the oxidation of the ester group 
C)  the oxidation of the alkene 
D)  the reduction of the alkene 
E)  autooxidation

Question 6

Which one of the following fatty acids is produced when oleic acid is hydrogenated?

Accepted Answer

A)  palmitic acid 
B)  lauric acid 
C)  myrsitic acid 
D)  arachidic acid 
E)  stearic acid 
A)  palmitic acid 
B)  lauric acid 
C)  myrsitic acid 
D)  arachidic acid 
E)  stearic acid

Question 7

Which one of the following has the lowest melting point?

Accepted Answer

A)  trilaurin 
B)  tristearin 
C)  trilinolein 
D)  tripalmitolein 
A)  trilaurin 
B)  tristearin 
C)  trilinolein 
D)  tripalmitolein

Question 8

Which one of the following is a correct classification of the following compound?

Accepted Answer

A)  steroid 
B)  prostaglandin 
C)  triglyceride 
D)  terpene 
E)  lecithin 
A)  steroid 
B)  prostaglandin 
C)  triglyceride 
D)  terpene 
E)  lecithin

Question 9

The interior of a micelle is ______, whereas the exterior is _______.

Accepted Answer

A)  hydrophilic, hydrophobic 
B)  hydrophilic, hydrophilic 
C)  hydrophobic, hydrophobic 
D)  hydrophobic, hydrophilic 
A)  hydrophilic, hydrophobic 
B)  hydrophilic, hydrophilic 
C)  hydrophobic, hydrophobic 
D)  hydrophobic, hydrophilic

Question 10

Which one of the following is a correct representation of PGAs?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  V 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  V

Question 11

Why is decanol more efficient at crossing the cell membrane than hexanol?

Accepted Answer

Decanol has a longer hydrophob

Question 12

Compounds containing repeated isoprene units are called ________.

Accepted Answer

A)  cephalins 
B)  terpenes 
C)  eicosanoids 
D)  steroids 
E)  diterpene 
A)  cephalins 
B)  terpenes 
C)  eicosanoids 
D)  steroids 
E)  diterpene

Question 13

Which one of the following is not classified as an eicosanoid?

Accepted Answer

A)  leukotrienes 
B)  prostaglandins 
C)  thromboxanes 
D)  prostacyclins 
E)  cortisone 
A)  leukotrienes 
B)  prostaglandins 
C)  thromboxanes 
D)  prostacyclins 
E)  cortisone

Question 14

Identify the isoprene units in manool.

Accepted Answer

The answer of Identify the isoprene units in manool. ...

Question 15

Predict the products when spermaceti is treated with aqueous NaOH.

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  none of these 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  none of these

Question 16

Which one of the following is a correct representation of PGDs?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  V 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  V

Question 17

______lipids undergo hydrolysis in the presence of aqueous acid or base.

Accepted Answer

The answer of ______lipids undergo hydrolysis in the presence of...

Question 18

Which one of the following is classified as a fat?

Accepted Answer

A)  triolein 
B)  trilinolein 
C)  tripalmitolein 
D)  triarchadin 
A)  triolein 
B)  trilinolein 
C)  tripalmitolein 
D)  triarchadin

Question 19

Identify the fuel that is produced when vegetable oil undergoes transesterification.

Accepted Answer

A)  gasoline 
B)  diesel 
C)  biodiesel 
D)  kerosene 
E)  natural gas 
A)  gasoline 
B)  diesel 
C)  biodiesel 
D)  kerosene 
E)  natural gas

Question 20

Which one of the following is a class of complex lipids?

Accepted Answer

A)  steroids 
B)  terpenes 
C)  waxes 
D)  prostaglandins 
E)  furans 
A)  steroids 
B)  terpenes 
C)  waxes 
D)  prostaglandins 
E)  furans

Exam 26: Lipids

The following compound is best classified as a(n) _________.

In naturally occurring steroids mostly the B-C ring fusion is ______and the C-D ring fusion is ______.

Phosphoglycerides differ from triglycerides in that one of the three fatty acid residues is replaced by a(n) ______ group.

Provide the structure of an optically active triglyceride that produced two myristic acid residues and an oleic acid residue when heated in the presence of an acid.

The rancid smell from unsaturated oils is due to ______________.

Which one of the following fatty acids is produced when oleic acid is hydrogenated?

Which one of the following has the lowest melting point?

Which one of the following is a correct classification of the following compound?

The interior of a micelle is ______, whereas the exterior is _______.

Which one of the following is a correct representation of PGAs?

Why is decanol more efficient at crossing the cell membrane than hexanol?

Compounds containing repeated isoprene units are called ________.

Which one of the following is not classified as an eicosanoid?

Identify the isoprene units in manool.

Predict the products when spermaceti is treated with aqueous NaOH.

Which one of the following is a correct representation of PGDs?

______lipids undergo hydrolysis in the presence of aqueous acid or base.

Which one of the following is classified as a fat?

Identify the fuel that is produced when vegetable oil undergoes transesterification.

Which one of the following is a class of complex lipids?

A Review of General Chemistry: Electrons, Bonds, and Molecular Properties

Molecular Representations

Acids and Bases

Alkanes and Cycloalkanes

Stereoisomerism

Chemical Reactivity and Mechanisms

Alkyl Halides: Nucleophilic Substitution and Elimination Reactions

Addition Reactions of Alkenes

Alkynes

Radical Reactions

Synthesis

Alcohols and Phenols

Ethers and Epoxides; Thiols and Sulfides

Infrared Spectroscopy and Mass Spectrometry

Nuclear Magnetic Resonance Spectroscopy

Conjugated Pi Systems and Pericyclic Reactions

Aromatic Compounds

Aromatic Substitution Reactions

Aldehydes and Ketones

Carboxylic Acids and Their Derivatives

Alpha Carbon Chemistry: Enols and Enolates

Amines

Introduction to Organometallic Compounds

Carbohydrates

Amino Acids, Peptides, and Proteins

Synthetic Polymers

Filters

In naturally occurring steroids mostly the B-C ring fusion is and the C-D ring fusion is .

The interior of a micelle is , whereas the exterior is _.