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Solid fats are generally from what source?


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

E) None of the above
F) A) and B)

Correct Answer

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Which structure represents the lowest energy conformation of a trans-decalin? Which structure represents the lowest energy conformation of a trans-decalin? A) A B) B C) C D) D


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

E) B) and D)
F) A) and B)

Correct Answer

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Which of the following compounds is a steroid? Which of the following compounds is a steroid? A) A B) B C) C D) D


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

E) All of the above
F) B) and C)

Correct Answer

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What is the structure of a cortisone derivative that has a C=C between C6 and C7,methyl group at C8 and chlorine at C12? The configuration of C8 is S and the configuration at C12 is R. What is the structure of a cortisone derivative that has a C=C between C6 and C7,methyl group at C8 and chlorine at C12? The configuration of C8 is S and the configuration at C12 is R. A) I B) II C) III D) IV


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

E) None of the above
F) B) and C)

Correct Answer

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Provide a definition of the term lipid.


A) A compound with a carbonyl group
B) A compound with an aromatic ring
C) A hydrophobic biomolecule
D) A water-soluble compound

E) A) and B)
F) All of the above

Correct Answer

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Patchouli alcohol is an example of a terpene.How is this molecule classified? Patchouli alcohol is an example of a terpene.How is this molecule classified? A) Monoterpene B) Diterpene C) Triterpene D) Sesquiterpene


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

E) A) and B)
F) A) and C)

Correct Answer

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Which of the following compounds is not a lipid? Which of the following compounds is not a lipid? A) A B) B C) C D) D


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

E) A) and B)
F) A) and C)

Correct Answer

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


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.

E) All of the above
F) None of the above

Correct Answer

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Eicosanoids are derived from what compound?


A) Arachidonic acid
B) Cyclohexane
C) Cholesterol
D) Triacylglycerols

E) A) and B)
F) All of the above

Correct Answer

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


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

E) None of the above
F) All of the above

Correct Answer

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


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

E) C) and D)
F) B) and D)

Correct Answer

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


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

E) B) and D)
F) A) and B)

Correct Answer

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Triacylglycerol A yields compound B when treated with excess H2,Pd-C.Ozonolysis of A affords three molecules of compound C and one molecule of compound D.What is the structure of A? Triacylglycerol A yields compound B when treated with excess H<sub>2</sub>,Pd-C.Ozonolysis of A affords three molecules of compound C and one molecule of compound D.What is the structure of A? Choices for Triglycerol A: A) A B) B C) C D) D Choices for Triglycerol A: Triacylglycerol A yields compound B when treated with excess H<sub>2</sub>,Pd-C.Ozonolysis of A affords three molecules of compound C and one molecule of compound D.What is the structure of A? Choices for Triglycerol A: A) A B) B C) C D) D


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

E) A) and B)
F) B) and D)

Correct Answer

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Liquid oils usually have a higher percentage of what component compared to solid fats?


A) Oxygen
B) Hydrogen
C) Unsaturation
D) Aromatic rings

E) All of the above
F) B) and D)

Correct Answer

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What chemical process causes an oil (such as soybean oil) to become rancid?


A) Hydrogenation with hydrogen
B) Hydration with water
C) Oxidation with molecular oxygen
D) Bromination with bromine

E) B) and D)
F) A) and B)

Correct Answer

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


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

E) A) and B)
F) A) and C)

Correct Answer

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What is the purpose of vitamin K?


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

E) A) and B)
F) B) and C)

Correct Answer

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The stereoselective introduction of the C15 OH group on the w side chain of prostaglandins has presented a challenge for synthetic chemists.Recently,Mulzer and co-workers demonstrated a new route in which the w side chain is synthesized independently and then attached to the bicyclic counterpart.What is the appropriate sequence of reagents for the following synthesis? The stereoselective introduction of the C15 OH group on the w side chain of prostaglandins has presented a challenge for synthetic chemists.Recently,Mulzer and co-workers demonstrated a new route in which the w side chain is synthesized independently and then attached to the bicyclic counterpart.What is the appropriate sequence of reagents for the following synthesis? A) (1) PBr<sub>3</sub>; (2) Grubbs' catalyst,Reagent X; (3) KOC(CH<sub>3</sub>) <sub>3</sub> B) (1) PCC; (2) Ph<sub>3</sub>P=CH<sub>2</sub>; (3) Grubbs' catalyst,Reagent X C) (1) PBr<sub>3</sub>; (2) Ph<sub>3</sub>P=CH<sub>2</sub>; (3) Grubbs' catalyst,Reagent X D) (1) TsCl,pyridine; (2) Grubbs' catalyst,Reagent X; (3) KOC(CH<sub>3</sub>) <sub>3</sub>


A) (1) PBr3; (2) Grubbs' catalyst,Reagent X; (3) KOC(CH3) 3
B) (1) PCC; (2) Ph3P=CH2; (3) Grubbs' catalyst,Reagent X
C) (1) PBr3; (2) Ph3P=CH2; (3) Grubbs' catalyst,Reagent X
D) (1) TsCl,pyridine; (2) Grubbs' catalyst,Reagent X; (3) KOC(CH3) 3

E) All of the above
F) A) and D)

Correct Answer

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


A) Linoleic acid
B) Oleic acid
C) Arachidonic acid
D) Palmitoleic acid

E) B) and D)
F) A) and B)

Correct Answer

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How many isoprene units can be found in the following compound? How many isoprene units can be found in the following compound? A) 1 B) 4 C) 8 D) 9


A) 1
B) 4
C) 8
D) 9

E) A) and D)
F) None of the above

Correct Answer

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