Question 1

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 2

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 3

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 4

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 5

The intermolecular force between bases on the opposite strands of DNA responsible for its double-helical structure is

Accepted Answer

A) hydrogen bonding. 
B) dispersion force. 
C) covalent bonding. 
D) ionic force. 
E) dipole-dipole force. 
A) hydrogen bonding. 
B) dispersion force. 
C) covalent bonding. 
D) ionic force. 
E) dipole-dipole force.

Question 6

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 7

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 8

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 9

Draw the structural formula of the monomer that would be used to prepare the following
polymer (Teflon):

Accepted Answer

The answer of Draw the structural formula of the monomer...

Question 10

The following amino acids all have nonpolar side chains.

Accepted Answer

A) True 
 B)False

Question 11

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 12

A peptide bond (also called an amide bond)joins two amino acids together. What atoms are linked by this bond?

Accepted Answer

A) C - O 
B) C - H 
C) C - N 
D) N - S 
E) S - C 
A) C - O 
B) C - H 
C) C - N 
D) N - S 
E) S - C

Question 13

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 14

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 15

Acrylonitrile 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 16

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

Accepted Answer

A) True 
 B)False

Question 17

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 18

The primary structure of a protein refers to the unique amino acid sequence of the polypeptide chain.

Accepted Answer

A) True 
 B)False

Question 19

Which one of these molecules could not serve as a monomer for an addition polymer?

Accepted Answer

A) ClCH=CH2 
B) H2C=CH-CN 
C) H2C=CH-C6H5 
D)    
E)    
A) ClCH=CH2 
B) H2C=CH-CN 
C) H2C=CH-C6H5 
D)    
E)

Question 20

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

Accepted Answer

A) True 
 B)False

Exam 22: Organic Polymerssynthetic and Natural

The segment represents the polymer named

A protein that has been reversibly denatured has

An essential amino acid is one that

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

The intermolecular force between bases on the opposite strands of DNA responsible for its double-helical structure is

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

A protein is

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

Draw the structural formula of the monomer that would be used to prepare the following polymer (Teflon):

The following amino acids all have nonpolar side chains.

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

A peptide bond (also called an amide bond)joins two amino acids together. What atoms are linked by this bond?

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

Polystyrene results from the polymerization of

Acrylonitrile results from the polymerization of

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

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

The primary structure of a protein refers to the unique amino acid sequence of the polypeptide chain.

Which one of these molecules could not serve as a monomer for an addition polymer?

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

Introduction

Atoms, Molecules, and Ions

Stoichiometry

Reactions in Aqueous Solution

Gases

Energy Relationships in Chemical Reactions

The Electronic Structure of Atoms

The Periodic Table

Chemical Bonding I: the Covalent Bond

Chemical Bonding Ii: Molecular Geometry and Hybridization of Atomic Orbitals

Introduction to Organic Chemistry

Intermolecular Forces and Liquids and Solids

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Thermodynamics

Redox Reactions and Electrochemistry

The Chemistry of Coordination Compounds

Nuclear Chemistry

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