Question 1

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

Accepted Answer

The answer of Which of the structures below corresponds to...

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

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 4

Polystyrene results from the polymerization of

Accepted Answer

The answer of Polystyrene results from the polymerization of ...

Question 5

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 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

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 8

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 9

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

Accepted Answer

A) True 
 B)False

Question 10

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 11

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 12

Polypropene results from the polymerization of

Accepted Answer

The answer of Polypropene results from the polymerization of ...

Question 13

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 14

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

Question 15

The following amino acids all have nonpolar side chains.

Accepted Answer

A) True 
 B)False

Question 16

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 17

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

Question 18

Both DNA and RNA have double-helical structures.

Accepted Answer

A) True 
 B)False

Question 19

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

Question 20

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...

Exam 25: Synthetic and Natural Organic Polymers

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

A protein that has been reversibly denatured has

What type of polymer is represented by the following repeating segment?

Polystyrene results from the polymerization of

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

The segment represents the polymer named

An amino acid is a compound that contains at least

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

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

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

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

Polypropene results from the polymerization of

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

The only true hydrocarbon polymer found in nature is

The following amino acids all have nonpolar side chains.

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

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

Both DNA and RNA have double-helical structures.

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

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.

Chemistry: The Study of Change

Atoms, Molecules, and Ions

Mass Relationships in Chemical Reactions

Reactions in Aqueous Solution

Gases

Thermo-Chemistry

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

Chemistry in the Atmosphere

Entropy, Free Energy, and Equilibrium

Electrochemistry

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Transition Metal Chemistry and Coordination Compounds

Nuclear Chemistry

Organic Chemistry

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