Question 1

Instructions: 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):
CH3COCl,pyridine

Accepted Answer

Question 2

When soaps disperse in water,the long hydrocarbon tails cluster together in a hydrophobic ball,while the ionic heads on the surface of the cluster stick out into the water.These spherical clusters are called:

Accepted Answer

A)  fatty acid esters
B)  triacylglycerols
C)  lipid bilayers
D)  micellesE) A) and B)
F) All of the above

Question 3

How many molecules of acetyl CoA are produced in the catabolism of stearic acid?

Accepted Answer

The answer of How many molecules of acetyl CoA are...

Question 4

All of the following are byproducts of b-oxidation,except:

Accepted Answer

A)  Acetyl CoA
B)  ADP
C)  NADH
D)  FADH2
E)  All of these are byproducts of b-oxidation.F) A) and B)
G) A) and C)

Question 5

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

Accepted Answer

A)  lauric acid
B)  oleic acid
C)  linoleic acid
D)  linolenic acidE) B) and D)
F) B) and C) A

Question 6

In the sequence of steps shown below for fatty acid biosynthesis,how many cycles must be completed to produce the following species?

Accepted Answer

6

Question 7

All of the following describe b-oxidation,except:

Accepted Answer

A)  Two-carbon units are eliminated during each cycle.
B)  The process employs NAD+ as an oxidant.
C)  The process is the primary route to fatty acid degradation.
D)  The 2-carbon groups are eliminated from the methyl end of the fatty acid.
E)  Fatty acids are attached to coenzyme A during the process.F) C) and D)
G) A) and B)

Question 8

Instructions: 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 Instructions: Indicate by asterisks the stereogenic centers...

Question 9

The following sequence represents the steps in the biosynthesis of fatty acids.

Accepted Answer

The answer of The following sequence represents the steps in...

Question 10

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)  micellesE) A) and D)
F) B) and C)

Question 11

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 trueF) A) and C)
G) B) and D)

Question 12

Instructions: 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 13

Progesterone and progestin are examples of:

Accepted Answer

A)  androgens
B)  estrogens
C)  progestins
D)  glucocorticoidsE) A) and B)
F) A) and C)

Question 14

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)  soapsE) A) and D)
F) C) and D)

Question 15

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...

Question 16

Instructions: 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 Instructions: Indicate by asterisks the stereogenic centers...

Question 17

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

Accepted Answer

The answer of Instructions: Indicate by asterisks the stereogenic centers...

Question 18

How many passages through the b-oxidation pathway are required to completely degrade the following fatty acid?
CH3(CH2)12CO2H

Accepted Answer

Question 19

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

Accepted Answer

A)  lauric acid
B)  myristic acid
C)  palmitic acid
D)  stearic acidE) A) and C)
F) A) and B)

Question 20

Instructions: 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 Instructions: Indicate by asterisks the stereogenic centers...

Exam 23: Biomolecules: Lipids and Their Metabolism

Instructions: 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): CH3COCl,pyridine

Correct AnswerverifiedShow Answer

When soaps disperse in water,the long hydrocarbon tails cluster together in a hydrophobic ball,while the ionic heads on the surface of the cluster stick out into the water.These spherical clusters are called:

Correct AnswerverifiedShow Answer

How many molecules of acetyl CoA are produced in the catabolism of stearic acid?

Correct AnswerverifiedShow Answer

All of the following are byproducts of b-oxidation,except:

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedA

In the sequence of steps shown below for fatty acid biosynthesis,how many cycles must be completed to produce the following species?

Correct Answerverified11ea7ca1_4b2c_d6cd_9d3f_8d309cce759b_TB4938_00 6

All of the following describe b-oxidation,except:

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The following sequence represents the steps in the biosynthesis of fatty acids.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following is not true about cholesterol?

Correct AnswerverifiedShow Answer

Instructions: 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

Correct AnswerverifiedShow Answer

Progesterone and progestin are examples of:

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct Answerverified11ea7ca1_4b2b_ec62_9d3f_81fd2fad1a90_TB4938_00

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

Correct AnswerverifiedShow Answer

How many passages through the b-oxidation pathway are required to completely degrade the following fatty acid? CH3(CH2)12CO2H

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Instructions: 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): CH₃COCl,pyridine

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A

Correct Answer
verified
11ea7ca1_4b2c_d6cd_9d3f_8d309cce759b_TB4938_00 6

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Instructions: 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

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
11ea7ca1_4b2b_ec62_9d3f_81fd2fad1a90_TB4938_00

Correct Answer
verified

How many passages through the b-oxidation pathway are required to completely degrade the following fatty acid? CH₃(CH₂)₁₂CO₂H

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified