Question 1

Which of these is hydrophobic?

Accepted Answer

A)  Glucose
B)  K+
C)  Cl-
D)  Water
E)  FatF) C) and D)
G) A) and D)

Question 2

Hydrogen,deuterium,and tritium are three isotopes of hydrogen.

Accepted Answer

A) True 
 B)False

Question 3

A __________ reaction breaks a __________ down into its monomers.

Accepted Answer

A)  hydrolysis; polymer
B)  dehydration synthesis; molecule
C)  dehydration synthesis; polymer
D)  polymer; molecule
E)  condensation; reactantF) A) and E)
G) A) and D)

Question 4

A solution with pH 4 has __________ the H+ concentration of a solution with pH 8.

Accepted Answer

A)  ½
B)  2 times
C)  4 times
D)  10,000 times
E)  1/10,000F) C) and D)
G) All of the above

Question 5

__________ differ from one another in their number of neutrons and atomic mass.

Accepted Answer

A)  Cations
B)  Anions
C)  Isotopes
D)  Electrolytes
E)  Free radicalsF) A) and E)
G) A) and D)

Question 6

Which one of the following would not increase the rate of a reaction?

Accepted Answer

A)  An increase in reactant concentrations
B)  A rise in temperature
C)  The presence of a catalyst
D)  The presence of an enzyme
E)  A decrease in reactant concentrationsF) B) and C)
G) None of the above

Question 7

In a workout your muscle cells produce lactic acid,yet you maintain a constant blood pH because _________.

Accepted Answer

A)  metabolic acids are neutralized in muscle cells before released into the blood
B)  metabolic bases are produced at the same rate by muscle cells to neutralize the acids
C)  the respiratory system removes excess H+ from the blood before the pH is lowered
D)  the body contains chemicals called buffers that resist changes in pH
E)  endothelial cells secrete excess H+ to prevent a decrease in pHF) C) and E)
G) A) and B)

Question 8

The chemical properties of an atom are determined by its __________.

Accepted Answer

A)  protons
B)  electrons
C)  neutrons
D)  protons and neutrons
E)  particlesF) D) and E)
G) None of the above

Question 9

The bonding properties of an atom are determined by its __________.

Accepted Answer

A)  electrons
B)  protons
C)  positrons
D)  neutrons
E)  photonsF) A) and D)
G) C) and D)

Question 10

Unsaturated fatty acids have as much hydrogen as they can carry.

Accepted Answer

A) True 
 B)False

Question 11

Proteins are __________ built from __________ different amino acids.

Accepted Answer

A)  monomers; 10
B)  molecules; 10
C)  polymers; 20
D)  macromolecules; 40
E)  polypeptides; 20F) B) and C)
G) D) and E)

Question 12

The high heat capacity of water makes it a very ineffective coolant.

Accepted Answer

A) True 
 B)False

Question 13

The concentration of a solution may be expressed by all of the following except _________.

Accepted Answer

A)  weight per volume
B)  percentage
C)  molarity
D)  pHE) None of the above
F) B) and C)

Question 14

The vibration of an ear drum is an example of __________ energy.

Accepted Answer

A)  kinetic
B)  potential
C)  elastic
D)  radiantE) A) and C)
F) None of the above

Exam 2: The Chemistry of Life

Unsaturated fatty acids have as much hydrogen as they can carry.

Correct Answer
verified

The bonding properties of an atom are determined by its __________.

Correct Answer
verified

The concentration of a solution may be expressed by all of the following except _________.

Correct Answer
verified

A solution with pH 4 has __________ the H⁺ concentration of a solution with pH 8.

Correct Answer
verified

Hydrogen,deuterium,and tritium are three isotopes of hydrogen.

Correct Answer
verified

__________ differ from one another in their number of neutrons and atomic mass.

Correct Answer
verified

Which of these is hydrophobic?

Correct Answer
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The high heat capacity of water makes it a very ineffective coolant.

Correct Answer
verified

A reaction breaks a down into its monomers.

Correct Answer
verified

Proteins are built from different amino acids.

Correct Answer
verified

The vibration of an ear drum is an example of __________ energy.

Correct Answer
verified

In a workout your muscle cells produce lactic acid,yet you maintain a constant blood pH because _________.

Correct Answer
verified

Which one of the following would not increase the rate of a reaction?

Correct Answer
verified

The chemical properties of an atom are determined by its __________.

Correct Answer
verified

Exam 2: The Chemistry of Life

Unsaturated fatty acids have as much hydrogen as they can carry.

Correct AnswerverifiedShow Answer

The bonding properties of an atom are determined by its __________.

Correct AnswerverifiedShow Answer

The concentration of a solution may be expressed by all of the following except _________.

Correct AnswerverifiedShow Answer

A solution with pH 4 has __________ the H+ concentration of a solution with pH 8.

Correct AnswerverifiedShow Answer

Hydrogen,deuterium,and tritium are three isotopes of hydrogen.

Correct AnswerverifiedShow Answer

__________ differ from one another in their number of neutrons and atomic mass.

Correct AnswerverifiedShow Answer

Which of these is hydrophobic?

Correct AnswerverifiedShow Answer

The high heat capacity of water makes it a very ineffective coolant.

Correct AnswerverifiedShow Answer

A __________ reaction breaks a __________ down into its monomers.

Correct AnswerverifiedShow Answer

Proteins are __________ built from __________ different amino acids.

Correct AnswerverifiedShow Answer

The vibration of an ear drum is an example of __________ energy.

Correct AnswerverifiedShow Answer

In a workout your muscle cells produce lactic acid,yet you maintain a constant blood pH because _________.

Correct AnswerverifiedShow Answer

Which one of the following would not increase the rate of a reaction?

Correct AnswerverifiedShow Answer

The chemical properties of an atom are determined by its __________.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

A solution with pH 4 has __________ the H⁺ concentration of a solution with pH 8.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

A reaction breaks a down into its monomers.

Correct Answer
verified

Proteins are built from different amino acids.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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