Question 1

Which of the following polymers has a syndiotactic structure?

Accepted Answer

A)  A
B)  B
C)  C
D)  DE) B) and D)
F) A) and D)

Question 2

The following amino acids all have nonpolar side chains.

Accepted Answer

A) True 
 B)False

Question 3

The segment  represents the polymer named

Accepted Answer

A)  polybutylene.
B)  polyvinyl chloride.
C)  polypropylene.
D)  polystyrene.
E)  polyethylene.F) B) and D)
G) B) and E)

Question 4

Which choice lists both the sugar and the nitrogen base that are a part of RNA but are not a part of DNA?

Accepted Answer

A)  deoxyribose and thymine
B)  ribose and deoxyribose
C)  ribose and uracil
D)  uracil and thymine
E)  ribose and thymineF) A) and D)
G) A) and C)

Question 5

Amides are synthesized from two classes of organic compounds.Those two types of compounds are

Accepted Answer

A)  carboxylic acids and alkenes.
B)  amines and alcohols.
C)  alcohols and carboxylic acids.
D)  amines and carboxylic acids.
E)  alkenes and amines.F) B) and D)
G) A) and E)

Question 6

Polypropene results from the polymerization of

Accepted Answer

A)  A
B)  B
C)  C
D)  D
E)  EF) A) and E)
G) A) and B)

Question 7

Which of the following polymers is formed by a condensation process?

Accepted Answer

A)  PVC
B)  nylon
C)  Teflon
D)  Plexiglas
E)  neopreneF) C) and D)
G) None of the above

Question 8

An essential amino acid is one that

Accepted Answer

A)  must be included in the diet.
B)  contains no sulfur.
C)  occurs in all types of proteins.
D)  is necessary for vitamin production.
E)  the body can synthesize.F) None of the above
G) A) and B)

Question 9

Which one of these choices is the general structural formula of an amino acid?

Accepted Answer

A)   2-NH2 
C)     
D)    " class="answers-bank-image d-inline" rel="preload" >
B)  R-CH2-NH2
C)   2-NH2 
C)     
D)    " class="answers-bank-image d-inline" rel="preload" >
D)   2-NH2 
C)     
D)    " class="answers-bank-image d-inline" rel="preload" >E) A) and D)
F) B) and C)

Question 10

Which nitrogen base is found in RNA but not in DNA?

Accepted Answer

A)  adenine
B)  cytosine
C)  guanine
D)  thymine
E)  uracilF) A) and E)
G) None of the above

Question 11

Polystyrene results from the polymerization of

Accepted Answer

A)  A
B)  B
C)  C
D)  D
E)  EF) C) and D)
G) A) and B)

Question 12

Which of these molecules is a product of the hydrolysis of DNA?

Accepted Answer

A)  acetic acid
B)  glucose
C)  adenine
D)  ribose
E)  waterF) A) and C)
G) A) and B)

Question 13

Which polymerization shown takes place by a radical mechanism?

Accepted Answer

A)  I only
B)  II only
C)  I and II
D)  None of the aboveE) A) and B)
F) None of the above

Question 14

An amino acid is a compound that contains at least

Accepted Answer

A)  one amino group and one amide group.
B)  two amino groups and one carboxylic acid group.
C)  one hydroxyl group and one methyl group.
D)  one carboxylic acid group and one amino group.
E)  one methyl group and one amide group.F) C) and D)
G) B) and C)

Question 15

The polymer formed from the monomer CH2=CH-CN is

Accepted Answer

A)   2=CH-CN is 
A)     
B)  (CH2=CHCN) n 
C)  (CH2=CH=CN) n 
D)    " class="answers-bank-image d-inline" rel="preload" >
B)  (CH2=CHCN) n
C)  (CH2=CH=CN) n
D)   2=CH-CN is 
A)     
B)  (CH2=CHCN) n 
C)  (CH2=CH=CN) n 
D)    " class="answers-bank-image d-inline" rel="preload" >E) B) and C)
F) All of the above

Question 16

What structural feature is required to have an isotactic or syndiotactic carbon-based polymer?

Accepted Answer

A)  A repeating unit that contains an asymmetric carbon
B)  A repeating unit that contains a double bond
C)  A repeating unit that contains a triple bond
D)  A repeating unit that contains an aromatic hydrocarbon
E)  A repeating unit that contains an atom other than carbonF) A) and D)
G) B) and E)

Question 17

Which choice contains all three molecular units found in nucleotides?

Accepted Answer

A)  phosphate, sugar, amino acid
B)  amino acid, nitrogen-containing base, sugar
C)  carboxylic acid, sugar, protein
D)  phosphate, nitrogen-containing base, sugar
E)  sugar, amino acid, proteinF) A) and E)
G) A) and D)

Question 18

A protein is

Accepted Answer

A)  a polysaccharide.
B)  a saturated ester of glycerol.
C)  one of the units making up a nucleic acid.
D)  a polymer of amino acids.
E)  an aromatic hydrocarbon.F) D) and E)
G) All of the above

Question 19

Which of the following polymers has an atactic structure?

Accepted Answer

A)  A
B)  B
C)  C
D)  DE) C) and D)
F) A) and B)

Question 20

Which of the following statements about the binding of oxygen to deoxyhemoglobin is correct?

Accepted Answer

A)  The binding of oxygen to Fe2+ in the first heme pulls the iron ion into the porphyrin ring, decreasing the affinity for the second oxygen.
B)  The binding of oxygen to Fe2+ in the first heme pushes the iron ion out of the porphyrin ring, decreasing the affinity for the second oxygen.
C)  The binding of oxygen to Fe2+ in the first heme pulls the iron ion into the porphyrin ring, increasing the affinity for the second oxygen.
D)  The binding of oxygen to Fe2+ in the first heme pushes the iron ion out of the porphyrin ring, increasing the affinity for the second oxygen.
E)  Oxygen does not bind to deoxyhemoglobin.F) A) and E)
G) All of the above

Exam 25: Synthetic and Natural Organic Polymers

Which of the following polymers has a syndiotactic structure?

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An essential amino acid is one that

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Which choice contains all three molecular units found in nucleotides?

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What structural feature is required to have an isotactic or syndiotactic carbon-based polymer?

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Amides are synthesized from two classes of organic compounds.Those two types of compounds are

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A protein is

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The following amino acids all have nonpolar side chains.

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Which of the following polymers has an atactic structure?

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Which one of these choices is the general structural formula of an amino acid?

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Polystyrene results from the polymerization of

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The polymer formed from the monomer CH2=CH-CN is

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The segment represents the polymer named

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Which of the following statements about the binding of oxygen to deoxyhemoglobin is correct?

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An amino acid is a compound that contains at least

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Polypropene results from the polymerization of

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Which polymerization shown takes place by a radical mechanism?

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Which choice lists both the sugar and the nitrogen base that are a part of RNA but are not a part of DNA?

Correct AnswerverifiedShow Answer

Which of the following polymers is formed by a condensation process?

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Which nitrogen base is found in RNA but not in DNA?

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Which of these molecules is a product of the hydrolysis of DNA?

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The polymer formed from the monomer CH₂=CH-CN is

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