Question 1

Figure 2.2
Using Figure 2.2, match the following:
-Deoxyribose sugar.

Accepted Answer

A)  A
B)  D
C)  B
D)  E
E)  CF) A) and D)
G) A) and E)

Question 2

Match the following:
-Number of protons in an atom.

Accepted Answer

A)  Atomic symbol
B)  Mass number of an element
C)  Atomic numberD) B) and C)
E) A) and C)

Question 3

Which of the following does NOT characterize proteins?

Accepted Answer

A)   Their function depends on their three-dimensional shape.
B)   They may be denatured or coagulated by heat or acidity.
C)   They appear to be the molecular carriers of coded hereditary information.
D)   They have both functional and structural roles in the body.E) C) and D)
F) All of the above

Question 4

When DNA is replicated,it is necessary for the two strands to "unzip" temporarily.Choose which bonding type is most appropriate for holding the strands together in this way.

Accepted Answer

A)   non-polar covalent bonding
B)   hydrogen bonding
C)   ionic bonding
D)   polar covalent bondingE) B) and C)
F) All of the above

Question 5

Select the correct statement about isotopes.

Accepted Answer

A)   All the isotopes of an element have the same number of neutrons but differing numbers of electrons.
B)   Isotopes of the same element have the same atomic number but differ in their mass number.
C)   All the isotopes of an element are radioactive.
D)   Isotopes occur only in the heavier elements.E) B) and C)
F) C) and D)

Question 6

A patient is hyperventilating.The "blowing off" of excessive carbon dioxide causes a decrease in blood H+ concentration.How can the carbonic acid-bicarbonate buffer system function to correct this imbalance? 
CO2 + H2O ? H2CO3 ? H+ + HCO3-

Accepted Answer

A)   HCO3- binds with H+ to form H2CO3 and lower pH
B)   HCO3- binds with H+ to form H2CO3 and raise pH
C)   H2CO3 dissociates to form more H+ and lower pH
D)   H2CO3 dissociates to form more H+ and raise pHE) A) and B)
F) B) and D)

Question 7

Chemical properties are determined primarily by neutrons.

Accepted Answer

A) True 
 B)False

Question 8

A chemical bond is an energy relationship between outer electrons and neighboring atoms.

Accepted Answer

A) True 
 B)False

Question 9

Describe the factors that affect chemical reaction rates.

Accepted Answer

Temperature increases kinetic energy and...

Question 10

Figure 2.1
Using Figure 2.1, match the following:
-Monosaccharide.

Accepted Answer

A)  C
B)  B
C)  E
D)  D
E)  AF) B) and E)
G) B) and D)

Question 11

An amino acid may act as a proton acceptor or donor.Explain.

Accepted Answer

Amino acids have two component...

Question 12

Match the following:
-When the bonds of ATP are broken,energy is released to do cellular work.

Accepted Answer

A)  Mechanical energy
B)  Chemical energy
C)  Electrical energy
D)  Radiant energyE) A) and B)
F) A) and C)

Question 13

In general,the lipids that we refer to as oils have ________.

Accepted Answer

A)   long fatty acid chains
B)   a high water content
C)   unsaturated fatty acids
D)   saturated fatty acidsE) A) and D)
F) A) and C)

Question 14

Amino acids joining together to make a peptide is a good example of a(n) ________ reaction.

Accepted Answer

A)   decomposition
B)   reversible
C)   synthesis
D)   exchangeE) C) and D)
F) B) and C)

Question 15

Match the following:
-Carbon.

Accepted Answer

A)  Compound
B)  Mixture
C)  ElementD) None of the above
E) All of the above

Question 16

It is the difference in the R group that makes each amino acid chemically unique.

Accepted Answer

A) True 
 B)False

Question 17

If atom X has an atomic number of 74 it would have which of the following?

Accepted Answer

A)   37 protons and 37 neutrons
B)   37 protons and 37 electrons
C)   37 electrons
D)   74 protonsE) A) and B)
F) A) and C)

Question 18

A dipeptide can be broken into two amino acids by dehydration synthesis.

Accepted Answer

A) True 
 B)False

Question 19

The chemical symbol O=O means ________.

Accepted Answer

A)   the atoms are double bonded
B)   both atoms are bonded and have zero electrons in the outer orbit
C)   zero equals zero
D)   this is an ionic bond with two shared electronsE) A) and B)
F) A) and D)

Question 20

Figure 2.1
Using Figure 2.1, match the following:
-Polymer.

Accepted Answer

A)  C
B)  B
C)  E
D)  D
E)  AF) A) and E)
G) C) and D)

Exam 2: Chemistry Comes Alive

Figure 2.2 Using Figure 2.2, match the following: -Deoxyribose sugar.

Correct AnswerverifiedShow Answer

Match the following: -When the bonds of ATP are broken,energy is released to do cellular work.

Correct AnswerverifiedShow Answer

In general,the lipids that we refer to as oils have ________.

Correct AnswerverifiedShow Answer

If atom X has an atomic number of 74 it would have which of the following?

Correct AnswerverifiedShow Answer

Describe the factors that affect chemical reaction rates.

Correct AnswerverifiedTemperature increases kinetic energy and...View AnswerShow Answer

Which of the following does NOT characterize proteins?

Correct AnswerverifiedShow Answer

When DNA is replicated,it is necessary for the two strands to "unzip" temporarily.Choose which bonding type is most appropriate for holding the strands together in this way.

Correct AnswerverifiedShow Answer

Select the correct statement about isotopes.

Correct AnswerverifiedShow Answer

Chemical properties are determined primarily by neutrons.

Correct AnswerverifiedShow Answer

Match the following: -Number of protons in an atom.

Correct AnswerverifiedShow Answer

It is the difference in the R group that makes each amino acid chemically unique.

Correct AnswerverifiedShow Answer

Amino acids joining together to make a peptide is a good example of a(n) ________ reaction.

Correct AnswerverifiedShow Answer

An amino acid may act as a proton acceptor or donor.Explain.

Correct AnswerverifiedAmino acids have two component...View AnswerShow Answer

Match the following: -Carbon.

Correct AnswerverifiedShow Answer

A patient is hyperventilating.The "blowing off" of excessive carbon dioxide causes a decrease in blood H+ concentration.How can the carbonic acid-bicarbonate buffer system function to correct this imbalance? CO2 + H2O ? H2CO3 ? H+ + HCO3-

Correct AnswerverifiedShow Answer

A chemical bond is an energy relationship between outer electrons and neighboring atoms.

Correct AnswerverifiedShow Answer

Figure 2.1 Using Figure 2.1, match the following: -Polymer.

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Figure 2.1 Using Figure 2.1, match the following: -Monosaccharide.

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A dipeptide can be broken into two amino acids by dehydration synthesis.

Correct AnswerverifiedShow Answer

The chemical symbol O=O means ________.

Correct AnswerverifiedShow Answer

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Temperature increases kinetic energy and...
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Amino acids have two component...
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A patient is hyperventilating.The "blowing off" of excessive carbon dioxide causes a decrease in blood H⁺ concentration.How can the carbonic acid-bicarbonate buffer system function to correct this imbalance? CO₂ + H₂O ? H₂CO₃ ? H⁺ + HCO₃^-

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