, CHEM 210 | Module 1 | Original Biochemistry Practice
CHEM 210 Module 1 Exam | Biochemistry | Portage
| Q & A | 26/27 Actual (PDF)
1. A biochemistry student is asked to connect structure with function using macromolecule.
Whichresponse is best?
A) Macromolecule is defined only by the size of a molecule.
B) Macromolecule can be understood without considering molecular structure or bonding.
C) A macromolecule is a very large biological molecule, often assembled from smaller molecular subunits.
D) Macromolecule has little relevance to foundational biochemistry.
Correct Answer: A macromolecule is a very large biological molecule, often assembled from smaller molecular
subunits.
Rationale: A macromolecule is a very large biological molecule, often assembled from smaller molecular subunits.
The key is to connect composition and bonding to molecular or cellular function rather than relying on size or
memorized labels alone.
2. A biochemistry student is asked to connect structure with function using organic compound.
Whichresponse is best?
A) Organic Compound can be understood without considering molecular structure or bonding.
B) Organic Compound has little relevance to foundational biochemistry.
C) An organic compound generally contains carbon bonded in a molecular framework, commonly with
hydrogen andother biologically important elements.
D) Organic Compound is defined only by the size of a molecule.
Correct Answer: An organic compound generally contains carbon bonded in a molecular framework,
commonly with hydrogen and other biologically important elements.
Rationale: An organic compound generally contains carbon bonded in a molecular framework, commonly with
hydrogen and other biologically important elements. The key is to connect composition and bonding to molecular or
cellular function rather than relying on size or memorized labels alone.
3. Which statement best describes biologically important elements in introductory biochemistry?
A) Carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur are among the major elements used to
buildbiomolecules.
B) Biologically Important Elements can be understood without considering molecular structure or bonding.
C) Biologically Important Elements has little relevance to foundational biochemistry.
D) Biologically Important Elements is defined only by the size of a molecule.
Correct Answer: Carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur are among the major elements
used to build biomolecules.
Rationale: Carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur are among the major elements used to build
biomolecules. This concept belongs to Module 1's foundation in biomolecules, carbon chemistry, molecular
organization, and introductory cellular biochemistry.
4. Which laboratory or cell-biology observation is most consistent with phosphate group?
A) A phosphate group is highly polar, often negatively charged near physiological pH, and important in
energytransfer and nucleic acids.
B) Phosphate groups contain no oxygen
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, CHEM 210 | Module 1 | Original Biochemistry Practice
C) Phosphate groups are nonpolar hydrocarbons
D) Phosphate chemistry is unrelated to ATP
Correct Answer: A phosphate group is highly polar, often negatively charged near physiological pH, and
important in energy transfer and nucleic acids.
Rationale: A phosphate group is highly polar, often negatively charged near physiological pH, and important in
energy transfer and nucleic acids. The key is to connect composition and bonding to molecular or cellular function
rather than relying on size or memorized labels alone.
5. Which statement best describes oligomer in introductory biochemistry?
A) Oligomer is defined only by the size of a molecule.
B) An oligomer contains a small number of linked monomeric units.
C) Oligomer can be understood without considering molecular structure or bonding.
D) Oligomer has little relevance to foundational biochemistry.
Correct Answer: An oligomer contains a small number of linked monomeric units.
Rationale: An oligomer contains a small number of linked monomeric units. This concept belongs to Module 1's
foundation in biomolecules, carbon chemistry, molecular organization, and introductory cellular biochemistry.
6. Which statement best describes molecular polarity in introductory biochemistry?
A) Molecular Polarity can be understood without considering molecular structure or bonding.
B) Molecular polarity depends on both bond polarities and the three-dimensional arrangement of those
bonds.
C) Molecular Polarity is defined only by the size of a molecule.
D) Molecular Polarity has little relevance to foundational biochemistry.
Correct Answer: Molecular polarity depends on both bond polarities and the three-dimensional arrangement of
those bonds.
Rationale: Molecular polarity depends on both bond polarities and the three-dimensional arrangement of those
bonds. This concept belongs to Module 1's foundation in biomolecules, carbon chemistry, molecular organization,
and introductory cellular biochemistry.
7. A student compares several biomolecules and must apply the concept of molecular formula.
Whichconclusion is most accurate?
A) A molecular formula lists only electrons
B) A molecular formula uniquely determines 3D shape
C) A molecular formula shows the number and type of atoms present in a molecule but not their full
connectivity.
D) A molecular formula always shows every bond angle
Correct Answer: A molecular formula shows the number and type of atoms present in a molecule but not their
full connectivity.
Rationale: A molecular formula shows the number and type of atoms present in a molecule but not their full
connectivity. The key is to connect composition and bonding to molecular or cellular function rather than relying on
size or memorized labels alone.
8. Which statement best describes sulfhydryl group in introductory biochemistry?
A) Sulfhydryl groups contain phosphorus
B) A sulfhydryl group (-SH) contains sulfur and can form disulfide bonds that help stabilize some proteins.
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CHEM 210 Module 1 Exam | Biochemistry | Portage
| Q & A | 26/27 Actual (PDF)
1. A biochemistry student is asked to connect structure with function using macromolecule.
Whichresponse is best?
A) Macromolecule is defined only by the size of a molecule.
B) Macromolecule can be understood without considering molecular structure or bonding.
C) A macromolecule is a very large biological molecule, often assembled from smaller molecular subunits.
D) Macromolecule has little relevance to foundational biochemistry.
Correct Answer: A macromolecule is a very large biological molecule, often assembled from smaller molecular
subunits.
Rationale: A macromolecule is a very large biological molecule, often assembled from smaller molecular subunits.
The key is to connect composition and bonding to molecular or cellular function rather than relying on size or
memorized labels alone.
2. A biochemistry student is asked to connect structure with function using organic compound.
Whichresponse is best?
A) Organic Compound can be understood without considering molecular structure or bonding.
B) Organic Compound has little relevance to foundational biochemistry.
C) An organic compound generally contains carbon bonded in a molecular framework, commonly with
hydrogen andother biologically important elements.
D) Organic Compound is defined only by the size of a molecule.
Correct Answer: An organic compound generally contains carbon bonded in a molecular framework,
commonly with hydrogen and other biologically important elements.
Rationale: An organic compound generally contains carbon bonded in a molecular framework, commonly with
hydrogen and other biologically important elements. The key is to connect composition and bonding to molecular or
cellular function rather than relying on size or memorized labels alone.
3. Which statement best describes biologically important elements in introductory biochemistry?
A) Carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur are among the major elements used to
buildbiomolecules.
B) Biologically Important Elements can be understood without considering molecular structure or bonding.
C) Biologically Important Elements has little relevance to foundational biochemistry.
D) Biologically Important Elements is defined only by the size of a molecule.
Correct Answer: Carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur are among the major elements
used to build biomolecules.
Rationale: Carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur are among the major elements used to build
biomolecules. This concept belongs to Module 1's foundation in biomolecules, carbon chemistry, molecular
organization, and introductory cellular biochemistry.
4. Which laboratory or cell-biology observation is most consistent with phosphate group?
A) A phosphate group is highly polar, often negatively charged near physiological pH, and important in
energytransfer and nucleic acids.
B) Phosphate groups contain no oxygen
Page 2
, CHEM 210 | Module 1 | Original Biochemistry Practice
C) Phosphate groups are nonpolar hydrocarbons
D) Phosphate chemistry is unrelated to ATP
Correct Answer: A phosphate group is highly polar, often negatively charged near physiological pH, and
important in energy transfer and nucleic acids.
Rationale: A phosphate group is highly polar, often negatively charged near physiological pH, and important in
energy transfer and nucleic acids. The key is to connect composition and bonding to molecular or cellular function
rather than relying on size or memorized labels alone.
5. Which statement best describes oligomer in introductory biochemistry?
A) Oligomer is defined only by the size of a molecule.
B) An oligomer contains a small number of linked monomeric units.
C) Oligomer can be understood without considering molecular structure or bonding.
D) Oligomer has little relevance to foundational biochemistry.
Correct Answer: An oligomer contains a small number of linked monomeric units.
Rationale: An oligomer contains a small number of linked monomeric units. This concept belongs to Module 1's
foundation in biomolecules, carbon chemistry, molecular organization, and introductory cellular biochemistry.
6. Which statement best describes molecular polarity in introductory biochemistry?
A) Molecular Polarity can be understood without considering molecular structure or bonding.
B) Molecular polarity depends on both bond polarities and the three-dimensional arrangement of those
bonds.
C) Molecular Polarity is defined only by the size of a molecule.
D) Molecular Polarity has little relevance to foundational biochemistry.
Correct Answer: Molecular polarity depends on both bond polarities and the three-dimensional arrangement of
those bonds.
Rationale: Molecular polarity depends on both bond polarities and the three-dimensional arrangement of those
bonds. This concept belongs to Module 1's foundation in biomolecules, carbon chemistry, molecular organization,
and introductory cellular biochemistry.
7. A student compares several biomolecules and must apply the concept of molecular formula.
Whichconclusion is most accurate?
A) A molecular formula lists only electrons
B) A molecular formula uniquely determines 3D shape
C) A molecular formula shows the number and type of atoms present in a molecule but not their full
connectivity.
D) A molecular formula always shows every bond angle
Correct Answer: A molecular formula shows the number and type of atoms present in a molecule but not their
full connectivity.
Rationale: A molecular formula shows the number and type of atoms present in a molecule but not their full
connectivity. The key is to connect composition and bonding to molecular or cellular function rather than relying on
size or memorized labels alone.
8. Which statement best describes sulfhydryl group in introductory biochemistry?
A) Sulfhydryl groups contain phosphorus
B) A sulfhydryl group (-SH) contains sulfur and can form disulfide bonds that help stabilize some proteins.
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