Question 1

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

Accepted Answer

A)    
B) (CH2=CHCN)n 
C) (CH2=CH=CN)n 
D)    
A)    
B) (CH2=CHCN)n 
C) (CH2=CH=CN)n 
D)

Question 2

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

Accepted Answer

A) PVC 
B) nylon 
C) Teflon 
D) Plexiglas 
E) neoprene 
A) PVC 
B) nylon 
C) Teflon 
D) Plexiglas 
E) neoprene

Question 3

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

Accepted Answer

A) adenine 
B) cytosine 
C) guanine 
D) thymine 
E) uracil 
A) adenine 
B) cytosine 
C) guanine 
D) thymine 
E) uracil

Question 4

Which of the following polymers has a syndiotactic structure?

Accepted Answer

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

Question 5

Which of the following polymers has an atactic structure?

Accepted Answer

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

Question 6

Polystyrene results from the polymerization of

Accepted Answer

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

Question 7

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 carbon 
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 carbon

Question 8

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

Accepted Answer

A) acetic acid 
B) glucose 
C) adenine 
D) ribose 
E) water 
A) acetic acid 
B) glucose 
C) adenine 
D) ribose 
E) water

Question 9

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. 
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.

Question 10

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. 
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.

Question 11

The segment   represents the polymer named

Accepted Answer

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

Question 12

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. 
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.

Question 13

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

Question 14

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

Accepted Answer

A)    
B) R-CH2-NH2 
C)    
D)    
A)    
B) R-CH2-NH2 
C)    
D)

Question 15

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, protein 
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, protein

Question 16

Polypropene results from the polymerization of

Accepted Answer

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

Question 17

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

Question 18

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

Question 19

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. 
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.

Question 20

The following amino acids all have nonpolar side chains.

Accepted Answer

A) True 
 B)False

Exam 25: Synthetic and Natural Organic Polymers

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

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

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

Which of the following polymers has a syndiotactic structure?

Which of the following polymers has an atactic structure?

Polystyrene results from the polymerization of

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

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

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

A protein is

The segment represents the polymer named

An amino acid is a compound that contains at least

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

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

Which choice contains all three molecular units found in nucleotides?

Polypropene results from the polymerization of

Which polymerization shown takes place by a radical mechanism?

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

An essential amino acid is one that

The following amino acids all have nonpolar side chains.

Chemistry: the Study of Change

Atoms, Molecules, and Ions

Mass Relationships in Chemical Reactions

Reactions in Aqueous Solutions

Gases

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Periodic Relationships Among the Elements

Chemical Bonding I: Basic Concepts

Chemical Bonding Ii: Molecular Geometry and Hybridization of Atomic Orbitals

Intermolecular Forces and Liquids and Solids

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Entropy Free Energy and Equilibrium

Electrochemistry

Nuclear Chemistry

Chemistry in the Atmosphere

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Transition Metal Chemistry and Coordination Compounds

Organic Chemistry

Filters

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