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Chapter 1—Biochemistry and the Organization of Cells MULTIPLE CHOICE
1.
How do the molecules that play a role in living cells compare to those encountered in organic
chemistry?d
a. They are the same, just operating in a different context.
b. Biological molecules are organic molecules, but the similarity ends there.
c. Biological molecules aren't similar to organic molecules at all.
d. Biology isn't based on molecules at all, but a "vital force".
ANS:
A
PTS:
1
OBJ:
New in 6e
TOP:
Basic Themes
2.
Which of the following best defines organic chemistry?
a. The study of compounds contained in organisms.
b. The study of compounds containing organs.
c. The study of compounds containing carbon and hydrogen and their derivatives.
d. The study of compounds containing elements other than carbon.
ANS:
C
PTS:
1
OBJ:
New in 6e
TOP:
Chemical Foundations of Biochemistry
3.
Which of the following was part of the vital force theory?
a. The compounds found in living things are just like those found in the non-living world.
b. The compounds found in living things are interesting, but can easily be produced in the
laboratory.
c. The compounds found in living things can not be produced in the laboratory.
ANS:
C
PTS:
1
OBJ:
New in 6e
TOP:
Elitedocs
Chemical Foundations of Biochemistry
4.
The synthesis of urea from ammonium cyanate.
a. was a critical component of the Miller-Urey experiment.
b. requires a protein as a catalyst.
c. helped dispel the vital force theory.
d. supported the vital force theory.
ANS:
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C
PTS:
1
TOP:
Chemical Foundations of Biochemistry
5.
Which of the following is NOT a Functional Group
a. Amino group
b. Protein
c. Alcohol group
d. Carbonyl group
ANS:
B
PTS:
1
OBJ:
New in 7e
TOP:
Chemical Foundations of Biochemistry
6.
Which of the following functional groups are not commonly seen in biomolecules?
a. Alkyl halides
b. Amides
c. Carboxylic acids
d. Ethers
e. Phosphate esters
ANS:
A
PTS:
1
OBJ:
Modified from 5e
TOP:
Chemical Foundations of Biochemistry
7.
Which of the following statements regarding biomolecules is false?
a. They contain predominantly ionic bonds.
b. They contain predominantly nonmetallic elements.
c. Carbon is the key element.
d. Specific stereoisomers are essential in most cases.
ANS:
A
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PTS:
1
OBJ:
Modified from 5e
TOP:
Chemical Foundations of Biochemistry
8.
All of the following bonds are important in biomolecules, except:
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a. CCl
b. CH
c. CN
d. OH
e. OP
ANS:
A
PTS:
1
TOP:
Chemical Foundations of Biochemistry
9.
Which of the following statements regarding biopolymers is false?
a. Different sequences of the monomers can lead to different functions.
b. Only soluble polymers can be created from soluble monomers.
c. A wide, almost uncountable variety of polymers can be created from just a few monomers.
d. Different linkages between the monomers can lead to different functions.
e. Biopolymers can fold up into complex shapes.
ANS:
B
PTS:
1
OBJ:
Modified from 5e
TOP:
Chemical Foundations of Biochemistry
10.
Which statement is not correct about peptide nucleic acids, PNA?
a. They are combinations of peptides and nucleic acids.
b. Scientists create them to study the origins of life
c. They were proven to be the first hereditary molecule.
d. They may combine the catalytic properties of proteins with the information transfer ability
of nucleic acid
e. All of these statements apply to PNA.
ANS:
C
PTS:
1
OBJ:
New in 7e
TOP:
Chemical Foundations of Biochemistry
Elitedocs
11.
Rank the following levels of structural organization in terms of size from smallest to biggest:
a. atoms < molecules < organelles < cells < organs
b. atoms < organelles < molecules < cells < organs
c. atoms < molecules < cells < organelles < organs
d. molecules < atoms < organelles < cells < organs
e. atoms < molecules < organelles < organs < cells
ANS:
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A
PTS:
1
OBJ:
New in 6e
TOP:
Origin of Life
12.
According to the big bang theory of the creation of the universe,
a. the universe has been getting cooler since its beginning
b. the initial explosion caused the creation of all of the elements of the periodic table
c. carbon is the most abundant element in the universe
d. the earth could be no older than 1 billion years
ANS:
A
PTS:
1
OBJ:
New in 7e
TOP:
Origin of Life
13.
In its earliest stages, which atoms were present in the universe?
a. carbon, hydrogen, and oxygen
b. hydrogen, helium, and lithium
c. nitrogen, sulfur, and phosphorous
d. uranium, polonium, and radium
e. helium, neon, and argon
ANS:
B
PTS:
1
OBJ:
New in 6e
TOP:
Origin of Life
14.
How are the majority of elements thought to have been formed?
a. By thermonuclear reactions that normally take place in stars.
b. In explosions of stars.
c. By the action of cosmic rays outside the stars since the formation of the galaxy.
d. All of the above.
e. None of the above; all the elements were present from the initial Big Bang.
ANS:
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D
PTS:
1
OBJ:
New in 6e
TOP:
Origin of Life
15.
What is the chemical formula for ozone?
Elitedocs
Chapter 1—Biochemistry and the Organization of Cells MULTIPLE CHOICE
1.
How do the molecules that play a role in living cells compare to those encountered in organic
chemistry?d
a. They are the same, just operating in a different context.
b. Biological molecules are organic molecules, but the similarity ends there.
c. Biological molecules aren't similar to organic molecules at all.
d. Biology isn't based on molecules at all, but a "vital force".
ANS:
A
PTS:
1
OBJ:
New in 6e
TOP:
Basic Themes
2.
Which of the following best defines organic chemistry?
a. The study of compounds contained in organisms.
b. The study of compounds containing organs.
c. The study of compounds containing carbon and hydrogen and their derivatives.
d. The study of compounds containing elements other than carbon.
ANS:
C
PTS:
1
OBJ:
New in 6e
TOP:
Chemical Foundations of Biochemistry
3.
Which of the following was part of the vital force theory?
a. The compounds found in living things are just like those found in the non-living world.
b. The compounds found in living things are interesting, but can easily be produced in the
laboratory.
c. The compounds found in living things can not be produced in the laboratory.
ANS:
C
PTS:
1
OBJ:
New in 6e
TOP:
Elitedocs
Chemical Foundations of Biochemistry
4.
The synthesis of urea from ammonium cyanate.
a. was a critical component of the Miller-Urey experiment.
b. requires a protein as a catalyst.
c. helped dispel the vital force theory.
d. supported the vital force theory.
ANS:
Elitedocs
, Elitedocs
C
PTS:
1
TOP:
Chemical Foundations of Biochemistry
5.
Which of the following is NOT a Functional Group
a. Amino group
b. Protein
c. Alcohol group
d. Carbonyl group
ANS:
B
PTS:
1
OBJ:
New in 7e
TOP:
Chemical Foundations of Biochemistry
6.
Which of the following functional groups are not commonly seen in biomolecules?
a. Alkyl halides
b. Amides
c. Carboxylic acids
d. Ethers
e. Phosphate esters
ANS:
A
PTS:
1
OBJ:
Modified from 5e
TOP:
Chemical Foundations of Biochemistry
7.
Which of the following statements regarding biomolecules is false?
a. They contain predominantly ionic bonds.
b. They contain predominantly nonmetallic elements.
c. Carbon is the key element.
d. Specific stereoisomers are essential in most cases.
ANS:
A
Elitedocs
PTS:
1
OBJ:
Modified from 5e
TOP:
Chemical Foundations of Biochemistry
8.
All of the following bonds are important in biomolecules, except:
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, Elitedocs
a. CCl
b. CH
c. CN
d. OH
e. OP
ANS:
A
PTS:
1
TOP:
Chemical Foundations of Biochemistry
9.
Which of the following statements regarding biopolymers is false?
a. Different sequences of the monomers can lead to different functions.
b. Only soluble polymers can be created from soluble monomers.
c. A wide, almost uncountable variety of polymers can be created from just a few monomers.
d. Different linkages between the monomers can lead to different functions.
e. Biopolymers can fold up into complex shapes.
ANS:
B
PTS:
1
OBJ:
Modified from 5e
TOP:
Chemical Foundations of Biochemistry
10.
Which statement is not correct about peptide nucleic acids, PNA?
a. They are combinations of peptides and nucleic acids.
b. Scientists create them to study the origins of life
c. They were proven to be the first hereditary molecule.
d. They may combine the catalytic properties of proteins with the information transfer ability
of nucleic acid
e. All of these statements apply to PNA.
ANS:
C
PTS:
1
OBJ:
New in 7e
TOP:
Chemical Foundations of Biochemistry
Elitedocs
11.
Rank the following levels of structural organization in terms of size from smallest to biggest:
a. atoms < molecules < organelles < cells < organs
b. atoms < organelles < molecules < cells < organs
c. atoms < molecules < cells < organelles < organs
d. molecules < atoms < organelles < cells < organs
e. atoms < molecules < organelles < organs < cells
ANS:
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, Elitedocs
A
PTS:
1
OBJ:
New in 6e
TOP:
Origin of Life
12.
According to the big bang theory of the creation of the universe,
a. the universe has been getting cooler since its beginning
b. the initial explosion caused the creation of all of the elements of the periodic table
c. carbon is the most abundant element in the universe
d. the earth could be no older than 1 billion years
ANS:
A
PTS:
1
OBJ:
New in 7e
TOP:
Origin of Life
13.
In its earliest stages, which atoms were present in the universe?
a. carbon, hydrogen, and oxygen
b. hydrogen, helium, and lithium
c. nitrogen, sulfur, and phosphorous
d. uranium, polonium, and radium
e. helium, neon, and argon
ANS:
B
PTS:
1
OBJ:
New in 6e
TOP:
Origin of Life
14.
How are the majority of elements thought to have been formed?
a. By thermonuclear reactions that normally take place in stars.
b. In explosions of stars.
c. By the action of cosmic rays outside the stars since the formation of the galaxy.
d. All of the above.
e. None of the above; all the elements were present from the initial Big Bang.
ANS:
Elitedocs
D
PTS:
1
OBJ:
New in 6e
TOP:
Origin of Life
15.
What is the chemical formula for ozone?
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