Question 1

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

Accepted Answer

A)  lauric acid 
B)  myristic acid 
C)  palmitic acid 
D)  stearic acid 
A)  lauric acid 
B)  myristic acid 
C)  palmitic acid 
D)  stearic acid D

Question 2

Draw the product of the following reaction, which is involved in the catabolism of triacylglycerols.

Accepted Answer

The answer of Draw the product of the following reaction,...

Question 3

Match each of the given terms to a structure from the list below. There is only one correct structure for each term, and structures may be used more than once.
-Starting material for fatty acid biosynthesis.

Accepted Answer

A)   
B)   
C)   
D)   
E)  
F) 
G)Malonyl ACP
H) 
I) 
J)  
A)   
B)   
C)   
D)   
E)  
F) 
G)Malonyl ACP
H) 
I) 
J)  I

Question 4

Draw the structure of glyceryl trimyristate and compare its melting point to that of glyceryl tristearate.

Accepted Answer

Melting point is low

Question 5

The major lipid components of cell membranes are:

Accepted Answer

A)  sphingolipids 
B)  fatty acids 
C)  phosphoglycerides 
D)  terpenoids 
A)  sphingolipids 
B)  fatty acids 
C)  phosphoglycerides 
D)  terpenoids

Question 6

Match each of the given terms to a structure from the list below. There is only one correct structure for each term, and structures may be used more than once.
-Monoterpene precursor

Accepted Answer

A)   
B)   
C)   
D)   
E)  
F) 
G)Malonyl ACP
H) 
I) 
J)  
A)   
B)   
C)   
D)   
E)  
F) 
G)Malonyl ACP
H) 
I) 
J)

Question 7

Chemically, these are triacylglycerols, triesters of glycerol with three long-chain carboxylic acids.

Accepted Answer

A)  waxes 
B)  fats and oils 
C)  fatty acids 
D)  soaps 
A)  waxes 
B)  fats and oils 
C)  fatty acids 
D)  soaps

Question 8

Cell membranes, which form an effective barrier to the passage of ions and other components into and out of the cell, are:

Accepted Answer

A)  fatty acid esters 
B)  tricacylglycerols 
C)  lipid bilayers 
D)  micelles 
A)  fatty acid esters 
B)  tricacylglycerols 
C)  lipid bilayers 
D)  micelles

Question 9

Write the saponification reaction of glyceryl distearate monooleate.

Accepted Answer

@#IMG-DLM& The triacylglycerol

Question 10

Which of the following represents a similarity between the β-oxidation pathway and the biosynthesis of fatty acids?

Accepted Answer

A)  identity of the acyl group carriers 
B)  stereochemistry of reaction intermediates 
C)  identity of the redox coenzymes 
D)  involvement of acetyl CoA 
E)  all of these are similarities 
A)  identity of the acyl group carriers 
B)  stereochemistry of reaction intermediates 
C)  identity of the redox coenzymes 
D)  involvement of acetyl CoA 
E)  all of these are similarities

Question 11

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

Accepted Answer

A)  lauric acid 
B)  oleic acid 
C)  linoleic acid 
D)  linolenic acid 
A)  lauric acid 
B)  oleic acid 
C)  linoleic acid 
D)  linolenic acid

Question 12

Indicate by asterisks the stereogenic centers present in each of the indicated terpenes in the following question(s).
-Place asterisks:
linalool

Accepted Answer

The answer of Indicate by asterisks the stereogenic centers present...

Question 13

How many constitutional isomers could be written for glyceryl monolaurate monomyristate monosterate?

Accepted Answer

The answer of How many constitutional isomers could be written...

Question 14

Progesterone and progestin are examples of:

Accepted Answer

A)  androgens 
B)  estrogens 
C)  progestins 
D)  glucocorticoids 
A)  androgens 
B)  estrogens 
C)  progestins 
D)  glucocorticoids

Question 15

Indicate by asterisks the stereogenic centers present in each of the indicated terpenes in the following question(s).
-Place asterisks:
lineatin

Accepted Answer

The answer of Indicate by asterisks the stereogenic centers present...

Question 16

Draw the structure of calcium oleate. Would this substance be soluble or insoluble in water?

Accepted Answer

The answer of Draw the structure of calcium oleate. Would...

Question 17

Indicate by asterisks the stereogenic centers present in each of the indicated terpenes in the following question(s).
-Place asterisks:
abietic acid

Accepted Answer

The answer of Indicate by asterisks the stereogenic centers present...

Question 18

Which of the following is not true about cholesterol?

Accepted Answer

A)  a steroid 
B)  a precursor for other steroids 
C)  produced from lanosterol 
D)  geometry allows for ring-flips 
E)  all of these are true 
A)  a steroid 
B)  a precursor for other steroids 
C)  produced from lanosterol 
D)  geometry allows for ring-flips 
E)  all of these are true

Question 19

Draw the structures of the major organic product(s) you would expect to obtain from reaction of androsterone with the reagents listed below.   androsterone
-Draw major product(s):
NaBH4, ethanol

Accepted Answer

Question 20

Draw the structure of the carbocation intermediate that results from the following step in terpene synthesis.

Accepted Answer

The answer of Draw the structure of the carbocation intermediate...

Exam 23: Biomolecules: Lipids and Their Metabolism

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

Draw the product of the following reaction, which is involved in the catabolism of triacylglycerols.

Match each of the given terms to a structure from the list below. There is only one correct structure for each term, and structures may be used more than once. -Starting material for fatty acid biosynthesis.

Draw the structure of glyceryl trimyristate and compare its melting point to that of glyceryl tristearate.

The major lipid components of cell membranes are:

Match each of the given terms to a structure from the list below. There is only one correct structure for each term, and structures may be used more than once. -Monoterpene precursor

Chemically, these are triacylglycerols, triesters of glycerol with three long-chain carboxylic acids.

Cell membranes, which form an effective barrier to the passage of ions and other components into and out of the cell, are:

Write the saponification reaction of glyceryl distearate monooleate.

Which of the following represents a similarity between the β-oxidation pathway and the biosynthesis of fatty acids?

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

Indicate by asterisks the stereogenic centers present in each of the indicated terpenes in the following question(s). -Place asterisks: linalool

How many constitutional isomers could be written for glyceryl monolaurate monomyristate monosterate?

Progesterone and progestin are examples of:

Indicate by asterisks the stereogenic centers present in each of the indicated terpenes in the following question(s). -Place asterisks: lineatin

Draw the structure of calcium oleate. Would this substance be soluble or insoluble in water?

Indicate by asterisks the stereogenic centers present in each of the indicated terpenes in the following question(s). -Place asterisks: abietic acid

Which of the following is not true about cholesterol?

Draw the structures of the major organic product(s) you would expect to obtain from reaction of androsterone with the reagents listed below. androsterone -Draw major product(s): NaBH4, ethanol

Draw the structure of the carbocation intermediate that results from the following step in terpene synthesis.

Structure and Bonding

Polar Covalent Bonds; Acids and Bases

Organic Compounds: Alkanes and Their Stereochemistry

Organic Compounds: Cycloalkanes and Their Stereochemistry

Stereochemistry at Tetrahedral Centers

An Overview of Organic Reactions

Alkenes and Alkynes

Reactions of Alkenes and Alkynes

Aromatic Compounds

Structure Determination: Mass Spectrometry, Infrared Spectroscopy, and Ultraviolet Spectroscopy

Structure Determination: Mass Spectrometry, Infrared Spectroscopy, and Ultraviolet Spectroscopy

Structure Determination: Nuclear Magnetic Resonance Spectroscopy

Organohalides: Nucleophilic Substitutions and Eliminations

Alcohols, Phenols, and Thiols; Ethers and Sulfides

Aldehydes and Ketones: Nucleophilic Addition Reactions

Carboxylic Acids and Nitriles

Carboxylic Acid Derivatives: Nucleophilic Acyl Substitution Reactions

Carbonyl Alpha-Substitution and Condensation Reactions

Amines and Heterocycles

Biomolecules: Amino Acids, Peptides, and Proteins

Amino Acid Metabolism

Biomolecules: Carbohydrates

Carbohydrate Metabolism

Biomolecules: Nucleic Acids and Their Metabolism

Orbitals and Organic Chemistry: Pericyclic Reactionse

Synthetic Polymerse

Filters

Draw the structures of the major organic product(s) you would expect to obtain from reaction of androsterone with the reagents listed below. androsterone -Draw major product(s): NaBH₄, ethanol