Question 1

Organic chemistry is the study of molecules containing

Accepted Answer

A)  water.
B)  carbon.
C)  hydrogen.
D)  nitrogen.
E)  oxygen.F) A) and D)
G) A) and E)

Question 2

Of the biologically important functional groups listed below, which is hydrophobic and can make cross-bridges?

Accepted Answer

A)  hydroxyl
B)  carboxyl
C)  amino
D)  sulfhydryl
E)  methylF) D) and E)
G) B) and E)

Question 3

Why are hydrocarbons insoluble in water?

Accepted Answer

A)  The majority of their bonds are polar covalent carbon-to-hydrogen linkages.
B)  The majority of their bonds are nonpolar covalent carbon-to-hydrogen linkages.
C)  They are hydrophilic.
D)  They exhibit considerable molecular complexity and diversity.
E)  They are lighter than water.F) A) and C)
G) A) and B)

Question 4

Use the following figure to answer the questions below.
 
-Which molecule shown above has a carbonyl functional group in the form of a ketone?

Accepted Answer

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

Question 5

Testosterone and estradiol are male and female sex hormones, respectively, in many vertebrates. In what way(s) do these molecules differ from each other?

Accepted Answer

A)  Testosterone and estradiol are structural isomers but have the same molecular formula.
B)  Testosterone and estradiol are cis-trans isomers but have the same molecular formula.
C)  Testosterone and estradiol have different functional groups attached to the same carbon skeleton.
D)  Testosterone and estradiol have distinctly different chemical structures, with one including four fused rings of carbon atoms, while the other has three rings.
E)  Testosterone and estradiol are enantiomers of the same organic molecule.F) None of the above
G) D) and E)

Question 6

Which functional groups can act as acids?

Accepted Answer

A)  amino and sulfhydryl
B)  carbonyl and carboxyl
C)  carboxyl and phosphate
D)  hydroxyl and aldehyde
E)  ketone and aminoF) A) and B)
G) B) and E)

Question 7

Use the following figure to answer the questions below.
 
-Which functional group(s) shown above is (are) present in all amino acids?

Accepted Answer

A)  A and B
B)  B and D
C)  C only
D)  D only
E)  C and DF) A) and E)
G) B) and E)

Question 8

Use the following figure to answer the questions below.
 
-Which molecule shown above would have a positive charge in aqueous solution at pH 7?

Accepted Answer

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

Question 9

The idea that certain molecules could only be formed by living organisms was known as

Accepted Answer

A)  vitalism.
B)  mechanism.
C)  inorganic chemistry.
D)  religion.
E)  isomerism.F) D) and E)
G) B) and E)

Question 10

What determines whether a carbon atom's covalent bonds to other atoms are in a tetrahedral configuration or a planar configuration?

Accepted Answer

A)  the presence or absence of bonds with oxygen atoms
B)  the presence or absence of double bonds between the carbon atom and other atoms
C)  the polarity of the covalent bonds between carbon and other atoms
D)  the presence or absence of bonds with nitrogen atoms
E)  the solvent that the organic molecule is dissolved inF) B) and E)
G) B) and D)

Question 11

Use the following figure to answer the questions below.
 
-Which of the structures illustrated above cannot form hydrogen bonds with water molecules?

Accepted Answer

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

Question 12

Choose the term that correctly describes the relationship between these two sugar molecules:

Accepted Answer

A)  structural isomers
B)  cis-trans isomers
C)  enantiomers
D)  isotopesE) B) and C)
F) A) and B)

Question 13

Use the following figure to answer the questions below.
 
-Which molecule(s) shown above is (are) ionized in aqueous solution at pH 7?

Accepted Answer

A)  A
B)  B and D
C)  D and E
D)  D
E)  EF) All of the above
G) B) and E)

Question 14

Use the following figure to answer the questions below.
 
-Which molecule shown above can form a dimer linked by a covalent bond?

Accepted Answer

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

Question 15

Use the following figure to answer the questions below.
 
-Which molecule shown above contains an amino functional group, but is not an amino acid?

Accepted Answer

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

Question 16

Use the following figure to answer the questions below.
 
-Which molecule shown above can function as a base?

Accepted Answer

A)  A
B)  B
C)  C
D)  D
E)  EF) None of the above
G) A) and E)

Question 17

-What is the name of the functional group shown in the figure above?

Accepted Answer

A)  carbonyl
B)  ketone
C)  aldehyde
D)  carboxyl
E)  hydroxylF) B) and C)
G) A) and E)

Question 18

Use the following information to answer the questions below.
You are investigating the differences between three organic compounds. They all have the same carbon skeleton but have differences in their functional groups.
-You test for hydrophobicity and observe that one molecule type is extremely hydrophobic. Which of the following is the best possible conclusion?

Accepted Answer

A)  It has no functional groups attached and is a hydrocarbon.
B)  It contains at least one carboxyl group.
C)  It contains an amino group.
D)  It has at least one hydroxyl group.
E)  It contains phosphates.F) A) and E)
G) A) and D)

Exam 4: Carbon and the Molecular Diversity of Life

Choose the term that correctly describes the relationship between these two sugar molecules:

Correct Answer
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Of the biologically important functional groups listed below, which is hydrophobic and can make cross-bridges?

Correct Answer
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Use the following figure to answer the questions below. -Which molecule shown above has a carbonyl functional group in the form of a ketone?

Correct Answer
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Use the following figure to answer the questions below. -Which molecule(s) shown above is (are) ionized in aqueous solution at pH 7?

Correct Answer
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The idea that certain molecules could only be formed by living organisms was known as

Correct Answer
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Why are hydrocarbons insoluble in water?

Correct Answer
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What determines whether a carbon atom's covalent bonds to other atoms are in a tetrahedral configuration or a planar configuration?

Correct Answer
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Use the following figure to answer the questions below. -Which functional group(s) shown above is (are) present in all amino acids?

Correct Answer
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Testosterone and estradiol are male and female sex hormones, respectively, in many vertebrates. In what way(s) do these molecules differ from each other?

Correct Answer
verified

Organic chemistry is the study of molecules containing

Correct Answer
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Use the following figure to answer the questions below. -Which molecule shown above can function as a base?

Correct Answer
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Correct Answer
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Use the following figure to answer the questions below. -Which molecule shown above can form a dimer linked by a covalent bond?

Correct Answer
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Which functional groups can act as acids?

Correct Answer
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Use the following figure to answer the questions below. -Which of the structures illustrated above cannot form hydrogen bonds with water molecules?

Correct Answer
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Use the following figure to answer the questions below. -Which molecule shown above would have a positive charge in aqueous solution at pH 7?

Correct Answer
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-What is the name of the functional group shown in the figure above?

Correct Answer
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Use the following figure to answer the questions below. -Which molecule shown above contains an amino functional group, but is not an amino acid?

Correct Answer
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Exam 4: Carbon and the Molecular Diversity of Life

Choose the term that correctly describes the relationship between these two sugar molecules:

Correct AnswerverifiedShow Answer

Of the biologically important functional groups listed below, which is hydrophobic and can make cross-bridges?

Correct AnswerverifiedShow Answer

Use the following figure to answer the questions below. -Which molecule shown above has a carbonyl functional group in the form of a ketone?

Correct AnswerverifiedShow Answer

Use the following figure to answer the questions below. -Which molecule(s) shown above is (are) ionized in aqueous solution at pH 7?

Correct AnswerverifiedShow Answer

The idea that certain molecules could only be formed by living organisms was known as

Correct AnswerverifiedShow Answer

Why are hydrocarbons insoluble in water?

Correct AnswerverifiedShow Answer

What determines whether a carbon atom's covalent bonds to other atoms are in a tetrahedral configuration or a planar configuration?

Correct AnswerverifiedShow Answer

Use the following figure to answer the questions below. -Which functional group(s) shown above is (are) present in all amino acids?

Correct AnswerverifiedShow Answer

Testosterone and estradiol are male and female sex hormones, respectively, in many vertebrates. In what way(s) do these molecules differ from each other?

Correct AnswerverifiedShow Answer

Organic chemistry is the study of molecules containing

Correct AnswerverifiedShow Answer

Use the following figure to answer the questions below. -Which molecule shown above can function as a base?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Use the following figure to answer the questions below. -Which molecule shown above can form a dimer linked by a covalent bond?

Correct AnswerverifiedShow Answer

Which functional groups can act as acids?

Correct AnswerverifiedShow Answer

Use the following figure to answer the questions below. -Which of the structures illustrated above cannot form hydrogen bonds with water molecules?

Correct AnswerverifiedShow Answer

Use the following figure to answer the questions below. -Which molecule shown above would have a positive charge in aqueous solution at pH 7?

Correct AnswerverifiedShow Answer

-What is the name of the functional group shown in the figure above?

Correct AnswerverifiedShow Answer

Use the following figure to answer the questions below. -Which molecule shown above contains an amino functional group, but is not an amino acid?

Correct AnswerverifiedShow Answer

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