Question 1

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) D) and E)
G) C) and D)

Question 2

Proteins occurring in the  β\betaβ -pleated sheet structure

Accepted Answer

A)  are relatively inelastic.
B)  never occur in nature.
C)  produce structurally weak materials.
D)  contain no peptide bonds.
E)  are not involved in hydrogen bonds. F) B) and D)
G) A) and E)

Question 3

Which of the structures below corresponds to the dipeptide alanylcysteine? The parent amino acids are shown below.

Accepted Answer

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

Question 4

The segment  represents the polymer named

Accepted Answer

A)  polybutylene.
B)  polyvinyl chloride.
C)  polypropylene.
D)  polystyrene.
E)  polyethylene.F) None of the above
G) A) and B)

Question 5

Which of the structures below corresponds to the dipeptide cysteylananine? The parent amino acids are shown below.

Accepted Answer

A)  A
B)  B
C)  C
D)  D
E)  EF) None of the above
G) A) and E)

Question 6

Which one of these materials is a copolymer?

Accepted Answer

A)  Styrene-butadiene
B)  polyvinyl chloride
C)  polypropylene
D)  poly-cis-isoprene
E)  polyethyleneF) B) and E)
G) A) and E)

Question 7

Write an equation for the reaction of the diamine and di-carboxylic acid shown below, and show the structure of the nylon polymer that would be formed.

Accepted Answer

The answer of Write an equation for the reaction of...

Question 8

The backbone of a strand of nucleic acid consists of

Accepted Answer

A)  phosphate units only.
B)  phosphate and sugar units.
C)  polyester.
D)  phosphate, sugar, and nitrogen base units.
E)  sugar units only.F) B) and C)
G) A) and E)

Question 9

Poly(vinyl chloride) results from the polymerization of

Accepted Answer

A)   
B)   
C)   
D)   
E)   F) C) and D)
G) All of the above

Question 10

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) B) and C)

Question 11

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

Question 12

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 D)
F) A) and C) A

Question 13

The secondary structure of a protein is the

Accepted Answer

A)  configuration of those parts of the chain stabilized by a regular pattern of covalent bonds between C and O groups of the backbone of the chain.
B)  configuration of those parts of the chain stabilized by a regular pattern of hydrogen bonds between CO and NH groups of the backbone of the chain.
C)  specific order of amino acids in the chain.
D)  overall three-dimensional structure of the molecule.
E)  overall arrangement of several polypeptide chains into one functional unit.F) None of the above
G) A) and D)

Question 14

The only true hydrocarbon polymer found in nature is

Accepted Answer

A)  rubber.
B)  nylon.
C)  Tyvek.
D)  polystyrene.
E)  neoprene.F) A) and E)
G) C) and D) A

Question 15

Both DNA and RNA have double-helical structures.

Accepted Answer

A) True 
 B)False

Question 16

Which one of these molecules is part of the make-up of both DNA and RNA?

Accepted Answer

A)  deoxyribose
B)  ribose
C)  phosphate
D)  thymine
E)  uracilF) None of the above
G) C) and D)

Question 17

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

Accepted Answer

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

Question 18

Phosphorus is an essential mineral element. It is an important atom in which one of the following?

Accepted Answer

A)  amino acids
B)  proteins
C)  polyethylene
D)  nylon
E)  DNAF) C) and E)
G) B) and D)

Question 19

Polypropene results from the polymerization of

Accepted Answer

A)  A
B)  B
C)  C
D)  D
E)  EF) None of the above
G) A) and B) B

Question 20

A polymer made in a polymerization reaction that also produces small molecules (such as water) is classified as

Accepted Answer

A)  an addition polymer.
B)  a natural polymer.
C)  a condensation polymer.
D)  an elimination polymer.
E)  a copolymer.F) A) and C)
G) C) and E)

Exam 22: Organic Polymerssynthetic and Natural

Which choice contains all three molecular units found in nucleotides?

Correct AnswerverifiedShow Answer

Proteins occurring in the β\betaβ -pleated sheet structure

Correct AnswerverifiedShow Answer

Which of the structures below corresponds to the dipeptide alanylcysteine? The parent amino acids are shown below.

Correct AnswerverifiedShow Answer

The segment represents the polymer named

Correct AnswerverifiedShow Answer

Which of the structures below corresponds to the dipeptide cysteylananine? The parent amino acids are shown below.

Correct AnswerverifiedShow Answer

Which one of these materials is a copolymer?

Correct AnswerverifiedShow Answer

Write an equation for the reaction of the diamine and di-carboxylic acid shown below, and show the structure of the nylon polymer that would be formed.

Correct AnswerverifiedShow Answer

The backbone of a strand of nucleic acid consists of

Correct AnswerverifiedShow Answer

Poly(vinyl chloride) results from the polymerization of

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

An amino acid is a compound that contains at least

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedA

The secondary structure of a protein is the

Correct AnswerverifiedShow Answer

The only true hydrocarbon polymer found in nature is

Correct AnswerverifiedA

Both DNA and RNA have double-helical structures.

Correct AnswerverifiedShow Answer

Which one of these molecules is part of the make-up of both DNA and RNA?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Phosphorus is an essential mineral element. It is an important atom in which one of the following?

Correct AnswerverifiedShow Answer

Polypropene results from the polymerization of

Correct AnswerverifiedB

A polymer made in a polymerization reaction that also produces small molecules (such as water) is classified as

Correct AnswerverifiedShow Answer

Correct Answer
verified

Proteins occurring in the $\beta$ -pleated sheet structure

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

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

Correct Answer
verified
A

Correct Answer
verified

Correct Answer
verified
A

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
B

Correct Answer
verified