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BioChem 210 Final Exam Study Guide |
Practice Questions & Answers | Latest
Update
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SUMMARIZED EXAM COVERAGE
Macromolecules & Functional Groups — Covers macromolecule classification,
biomolecule structures, and identification of key functional groups.
Cell Biology & Organelles — Reviews major cell structures, organelle functions,
membranes, cell walls, and the cytoskeleton.
Carbon, Bonding & Molecular Geometry — Explores carbon’s unique properties, covalent
bonding, molecular shapes, and structural formulas.
Water, pH & Thermodynamics — Covers water properties, polarity, hydrogen bonding, pH
calculations, and fundamental thermodynamic concepts.
Proteins & Enzyme Kinetics — Reviews protein structures, enzyme function, cofactors,
and major enzyme inhibition mechanisms.
Lipids & Membrane Structure — Examines lipid types, saturated and unsaturated fatty
acids, membrane components, and the fluid mosaic model.
DNA & Base Pairing — Covers DNA structure, 5′ to 3′ directionality, and complementary
nucleic acid base-pairing rules.
ATP & Energy Metabolism — Explains ATP production and consumption, energy transfer,
and the role of ATP synthase.
Glycolysis, Beta-Oxidation & Urea Cycle — Reviews major metabolic pathways involved
in glucose, fatty acid, and nitrogen metabolism.
Electron Transport & Metabolic Flux — Covers the electron transport chain, ATP
generation, and regulation of metabolic pathways.
Intermolecular Forces & Hydrogen Bonding — Explores London dispersion forces,
dipole-dipole interactions, hydrogen bonding, and hydrophobic effects.
A researcher discovers a novel compound with a molecular mass of 4,800 g/mol. Based on
the module's definition, how should this compound be classified?
A) Macromolecule because it exceeds 1,000 g/mol
B) Macromolecule because it exceeds 500 g/mol
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C) Not a macromolecule because it is below 5,000 g/mol
D) Macromolecule because it is above 100 g/mol
E) Not a macromolecule because it is below 100 g/mol
Correct Answer: C) Not a macromolecule because it is below 5,000 g/mol The module
specifically defines macromolecules as compounds with molecular mass greater than 5,000
g/mol, so 4,800 g/mol falls below this threshold and would not be classified as a
macromolecule.
A biochemist is studying a molecule that contains both an amine group and a carboxyl group.
Which statement correctly describes this molecule?
A) It contains only one functional group
B) It must be a simple hydrocarbon
C) It contains two different functional groups
D) It cannot exist in living organisms
E) It must be a synthetic compound
Correct Answer: C) It contains two different functional groups The module clearly states that
biomolecules can have two or more different functional groups, and having both amine and
carboxyl groups demonstrates this principle.
A laboratory technician identifies a compound with the structure C₂H₅NH₂. This compound
should be classified as which type of functional group?
A) Alcohol
B) Carboxylic acid
C) Amine
D) Aldehyde
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E) Ketone
Correct Answer: C) Amine The structure C₂H₅NH₂ contains an amino group (-NH₂) bonded
to an ethyl group, which definitively classifies this compound as an amine according to the
module's functional group identification criteria.
During a cell biology experiment, a scientist observes an organelle breaking down harmful
substances. Which organelle is most likely responsible for this activity?
A) Lysosome
B) Peroxisome
C) Mitochondrion
D) Golgi apparatus
E) Endoplasmic reticulum
Correct Answer: B) Peroxisome The module specifies that peroxisomes serve the purpose of
degrading dangerous or hazardous molecules, distinguishing them from lysosomes which
digest macromolecules.
A student is examining cellular structures and observes an organelle that digests
macromolecules. This organelle is most likely which of the following?
A) Peroxisome
B) Ribosome
C) Lysosome
D) Nucleus
E) Chloroplast
BioChem 210 Final Exam Study Guide |
Practice Questions & Answers | Latest
Update
,2|Page
SUMMARIZED EXAM COVERAGE
Macromolecules & Functional Groups — Covers macromolecule classification,
biomolecule structures, and identification of key functional groups.
Cell Biology & Organelles — Reviews major cell structures, organelle functions,
membranes, cell walls, and the cytoskeleton.
Carbon, Bonding & Molecular Geometry — Explores carbon’s unique properties, covalent
bonding, molecular shapes, and structural formulas.
Water, pH & Thermodynamics — Covers water properties, polarity, hydrogen bonding, pH
calculations, and fundamental thermodynamic concepts.
Proteins & Enzyme Kinetics — Reviews protein structures, enzyme function, cofactors,
and major enzyme inhibition mechanisms.
Lipids & Membrane Structure — Examines lipid types, saturated and unsaturated fatty
acids, membrane components, and the fluid mosaic model.
DNA & Base Pairing — Covers DNA structure, 5′ to 3′ directionality, and complementary
nucleic acid base-pairing rules.
ATP & Energy Metabolism — Explains ATP production and consumption, energy transfer,
and the role of ATP synthase.
Glycolysis, Beta-Oxidation & Urea Cycle — Reviews major metabolic pathways involved
in glucose, fatty acid, and nitrogen metabolism.
Electron Transport & Metabolic Flux — Covers the electron transport chain, ATP
generation, and regulation of metabolic pathways.
Intermolecular Forces & Hydrogen Bonding — Explores London dispersion forces,
dipole-dipole interactions, hydrogen bonding, and hydrophobic effects.
A researcher discovers a novel compound with a molecular mass of 4,800 g/mol. Based on
the module's definition, how should this compound be classified?
A) Macromolecule because it exceeds 1,000 g/mol
B) Macromolecule because it exceeds 500 g/mol
,3|Page
C) Not a macromolecule because it is below 5,000 g/mol
D) Macromolecule because it is above 100 g/mol
E) Not a macromolecule because it is below 100 g/mol
Correct Answer: C) Not a macromolecule because it is below 5,000 g/mol The module
specifically defines macromolecules as compounds with molecular mass greater than 5,000
g/mol, so 4,800 g/mol falls below this threshold and would not be classified as a
macromolecule.
A biochemist is studying a molecule that contains both an amine group and a carboxyl group.
Which statement correctly describes this molecule?
A) It contains only one functional group
B) It must be a simple hydrocarbon
C) It contains two different functional groups
D) It cannot exist in living organisms
E) It must be a synthetic compound
Correct Answer: C) It contains two different functional groups The module clearly states that
biomolecules can have two or more different functional groups, and having both amine and
carboxyl groups demonstrates this principle.
A laboratory technician identifies a compound with the structure C₂H₅NH₂. This compound
should be classified as which type of functional group?
A) Alcohol
B) Carboxylic acid
C) Amine
D) Aldehyde
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E) Ketone
Correct Answer: C) Amine The structure C₂H₅NH₂ contains an amino group (-NH₂) bonded
to an ethyl group, which definitively classifies this compound as an amine according to the
module's functional group identification criteria.
During a cell biology experiment, a scientist observes an organelle breaking down harmful
substances. Which organelle is most likely responsible for this activity?
A) Lysosome
B) Peroxisome
C) Mitochondrion
D) Golgi apparatus
E) Endoplasmic reticulum
Correct Answer: B) Peroxisome The module specifies that peroxisomes serve the purpose of
degrading dangerous or hazardous molecules, distinguishing them from lysosomes which
digest macromolecules.
A student is examining cellular structures and observes an organelle that digests
macromolecules. This organelle is most likely which of the following?
A) Peroxisome
B) Ribosome
C) Lysosome
D) Nucleus
E) Chloroplast
