Question 1

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 2

Which choice lists both the sugar and the nitrogen base that are a part of RNA but are not 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 3

The functional group   found in proteins is called a (an)

Accepted Answer

A)  amide. 
B)  carboxylic acid. 
C)  amine. 
D)  amino acid. 
E)  dipeptide. 
A)  amide. 
B)  carboxylic acid. 
C)  amine. 
D)  amino acid. 
E)  dipeptide.

Question 4

Cysteine and methionine are unique among the twenty essential amino acids in that they

Accepted Answer

A)  are chiral. 
B)  contain an aromatic ring. 
C)  do not form dipolar ions. 
D)  contain sulfur. 
E)  cannot join with other amino acids to form peptides. 
A)  are chiral. 
B)  contain an aromatic ring. 
C)  do not form dipolar ions. 
D)  contain sulfur. 
E)  cannot join with other amino acids to form peptides.

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

Question 6

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 7

The monomer used to prepare polyvinyl chloride (PVC) is CHCl=CHCl.

Accepted Answer

A) True 
 B)False

Question 8

Hydrogen bonding, dispersion forces, ionic forces, and dipole-dipole forces all affect the structure of a protein.

Accepted Answer

A) True 
 B)False

Question 9

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

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

What type of polymer is represented by the following repeating segment

Accepted Answer

A)  polyamide 
B)  polyester 
C)  polyether 
D)  polyolefin 
E)  polyethylene 
A)  polyamide 
B)  polyester 
C)  polyether 
D)  polyolefin 
E)  polyethylene

Question 12

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 13

A protein that has been reversibly denatured has

Accepted Answer

A)  temporarily lost part or all of its secondary or tertiary structure. 
B)  temporarily lost part or all of its primary structure. 
C)  been genetically modified due to errors in the nucleotides in the parent DNA. 
D)  temporarily lost its amino acid residues. 
E)  temporarily lost the hydrogen bonding between nitrogenous bases. 
A)  temporarily lost part or all of its secondary or tertiary structure. 
B)  temporarily lost part or all of its primary structure. 
C)  been genetically modified due to errors in the nucleotides in the parent DNA. 
D)  temporarily lost its amino acid residues. 
E)  temporarily lost the hydrogen bonding between nitrogenous bases.

Question 14

Which one of these materials is a copolymer

Accepted Answer

A)  Styrene-butadiene 
B)  polyvinyl chloride 
C)  polypropylene 
D)  poly-cis-isoprene 
E)  polyethylene 
A)  Styrene-butadiene 
B)  polyvinyl chloride 
C)  polypropylene 
D)  poly-cis-isoprene 
E)  polyethylene

Question 15

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 16

Poly(vinyl chloride) results from the polymerization of

Accepted Answer

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

Question 17

The reaction of the diamine and di-carboxylic acid shown below produces nylon polymer. The correct structure for the repeating unit of the nylon polymer follows the arrow.

Accepted Answer

A) True 
 B)False

Question 18

Proteins occurring in the b-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. 
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.

Question 19

Which of the following polymers has a syndiotactic structure

Accepted Answer

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

Question 20

The only true hydrocarbon polymer found in nature is

Accepted Answer

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

Exam 25: Synthetic and Natural Organic Polymers

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

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

The functional group found in proteins is called a (an)

Cysteine and methionine are unique among the twenty essential amino acids in that they

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

The segment represents the polymer named

The monomer used to prepare polyvinyl chloride (PVC) is CHCl=CHCl.

Hydrogen bonding, dispersion forces, ionic forces, and dipole-dipole forces all affect the structure of a protein.

The backbone of a strand of nucleic acid consists of

A protein is

What type of polymer is represented by the following repeating segment

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

A protein that has been reversibly denatured has

Which one of these materials is a copolymer

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

Poly(vinyl chloride) results from the polymerization of

The reaction of the diamine and di-carboxylic acid shown below produces nylon polymer. The correct structure for the repeating unit of the nylon polymer follows the arrow.

Proteins occurring in the b-pleated sheet structure

Which of the following polymers has a syndiotactic structure

The only true hydrocarbon polymer found in nature is

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

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 Metals Chemistry and Coordination Compounds

Organic Chemistry

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