Page 1 of 214
CHEM 210 COMPLETE PRACTICE QUESTION
BANK
EXAMS 1–8 & FINAL EXAM | 2026–2027
ACADEMIC YEAR
PREMIUM EDITION | A+ GRADED |
COMPREHENSIVE STUDY GUIDE
itsjereguides
# TABLE OF CONTENTS
| Section | Topic | Questions |
|---------|-------|-----------|
| **Module 1** | Foundations of Biochemistry & Biomolecules | 31 |
| **Module 2** | Water, pH, Buffers & Organic Chemistry Fundamentals | 31 |
| **Module 3** | Amino Acids & Protein Structure | 32 |
| **Module 4** | Lipids & Membranes | 31 |
| **Module 5** | Carbohydrates & Glycobiology | 31 |
| **Module 6** | Nucleic Acids & Nucleotides | 31 |
| **Module 7** | Enzymes & Metabolic Pathways | 31 |
| **Module 8** | Nutrition, Vitamins & Minerals | 32 |
| **Final Exam** | Comprehensive Cumulative Review | 33 |
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# MODULE 1: FOUNDATIONS OF BIOCHEMISTRY & BIOMOLECULES
## Question 1
**Which of the following best defines the scope of biochemistry?**
A) The study of inorganic compounds and their reactions in laboratory settings
B) The study of chemical processes within and relating to living organisms, focusing on the
structure and function of biomolecules
C) The study of physical properties of matter at extreme temperatures
D) The study of nuclear reactions and radioactive decay
**Correct Answer: B**
**Rationale:** Biochemistry is the study of chemical processes within living organisms. It
focuses on the relationship between the structure and function of biomolecules and the chemical
reactions that sustain life. This includes understanding how macromolecules like proteins,
nucleic acids, carbohydrates, and lipids interact to maintain cellular function.
**Distractor Analysis:**
- **A:** This describes inorganic chemistry, not biochemistry. Biochemistry specifically deals
with organic compounds and biological systems.
- **C:** This describes physical chemistry or thermodynamics, not the biological focus of
biochemistry.
- **D:** This describes nuclear chemistry, which is a separate field entirely.
---
## Question 2
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**According to biochemical principles, a compound with a molecular mass of 8,000 g/mol is
classified as:**
A) A small molecule
B) An oligomer
C) A macromolecule
D) A monomer
**Correct Answer: C**
**Rationale:** In biochemistry, macromolecules are typically defined as large molecules with
molecular masses exceeding approximately 1,000–5,000 g/mol. A compound with a molecular
mass of 8,000 g/mol falls well within this range and is therefore classified as a macromolecule.
Examples include proteins, nucleic acids, and large polysaccharides.
**Distractor Analysis:**
- **A:** Small molecules typically have molecular masses below 1,000 g/mol.
- **B:** An oligomer is a short polymer chain, typically consisting of a few monomers, but not
necessarily defined by molecular mass alone.
- **D:** A monomer is a single subunit that can polymerize to form larger structures.
---
## Question 3
**Which of the following is NOT a property of carbon that makes it essential for life?**
A) Ability to form stable covalent bonds
B) Capacity to form single, double, and triple bonds
C) Possession of five valence electrons
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D) Ability to form long chains called polymers
**Correct Answer: C**
**Rationale:** Carbon has four valence electrons, not five. This allows carbon to form four
covalent bonds, making it uniquely suited to create diverse and complex organic molecules. The
ability to form single, double, and triple bonds, along with the capacity to form stable covalent
bonds and long polymer chains, are all essential properties for the molecular complexity required
for life.
**Distractor Analysis:**
- **A:** Carbon's ability to form stable covalent bonds is a key property. This is true.
- **B:** Carbon can indeed form single (C–C), double (C=C), and triple (C≡C) bonds.
- **D:** Carbon's ability to form long chains (catenation) is fundamental to organic chemistry
and biochemistry.
---
## Question 4
**Which element is NOT typically found in living organisms?**
A) Nitrogen (N)
B) Helium (He)
C) Hydrogen (H)
D) Oxygen (O)
**Correct Answer: B**
CHEM 210 COMPLETE PRACTICE QUESTION
BANK
EXAMS 1–8 & FINAL EXAM | 2026–2027
ACADEMIC YEAR
PREMIUM EDITION | A+ GRADED |
COMPREHENSIVE STUDY GUIDE
itsjereguides
# TABLE OF CONTENTS
| Section | Topic | Questions |
|---------|-------|-----------|
| **Module 1** | Foundations of Biochemistry & Biomolecules | 31 |
| **Module 2** | Water, pH, Buffers & Organic Chemistry Fundamentals | 31 |
| **Module 3** | Amino Acids & Protein Structure | 32 |
| **Module 4** | Lipids & Membranes | 31 |
| **Module 5** | Carbohydrates & Glycobiology | 31 |
| **Module 6** | Nucleic Acids & Nucleotides | 31 |
| **Module 7** | Enzymes & Metabolic Pathways | 31 |
| **Module 8** | Nutrition, Vitamins & Minerals | 32 |
| **Final Exam** | Comprehensive Cumulative Review | 33 |
,Page 2 of 214
# MODULE 1: FOUNDATIONS OF BIOCHEMISTRY & BIOMOLECULES
## Question 1
**Which of the following best defines the scope of biochemistry?**
A) The study of inorganic compounds and their reactions in laboratory settings
B) The study of chemical processes within and relating to living organisms, focusing on the
structure and function of biomolecules
C) The study of physical properties of matter at extreme temperatures
D) The study of nuclear reactions and radioactive decay
**Correct Answer: B**
**Rationale:** Biochemistry is the study of chemical processes within living organisms. It
focuses on the relationship between the structure and function of biomolecules and the chemical
reactions that sustain life. This includes understanding how macromolecules like proteins,
nucleic acids, carbohydrates, and lipids interact to maintain cellular function.
**Distractor Analysis:**
- **A:** This describes inorganic chemistry, not biochemistry. Biochemistry specifically deals
with organic compounds and biological systems.
- **C:** This describes physical chemistry or thermodynamics, not the biological focus of
biochemistry.
- **D:** This describes nuclear chemistry, which is a separate field entirely.
---
## Question 2
,Page 3 of 214
**According to biochemical principles, a compound with a molecular mass of 8,000 g/mol is
classified as:**
A) A small molecule
B) An oligomer
C) A macromolecule
D) A monomer
**Correct Answer: C**
**Rationale:** In biochemistry, macromolecules are typically defined as large molecules with
molecular masses exceeding approximately 1,000–5,000 g/mol. A compound with a molecular
mass of 8,000 g/mol falls well within this range and is therefore classified as a macromolecule.
Examples include proteins, nucleic acids, and large polysaccharides.
**Distractor Analysis:**
- **A:** Small molecules typically have molecular masses below 1,000 g/mol.
- **B:** An oligomer is a short polymer chain, typically consisting of a few monomers, but not
necessarily defined by molecular mass alone.
- **D:** A monomer is a single subunit that can polymerize to form larger structures.
---
## Question 3
**Which of the following is NOT a property of carbon that makes it essential for life?**
A) Ability to form stable covalent bonds
B) Capacity to form single, double, and triple bonds
C) Possession of five valence electrons
, Page 4 of 214
D) Ability to form long chains called polymers
**Correct Answer: C**
**Rationale:** Carbon has four valence electrons, not five. This allows carbon to form four
covalent bonds, making it uniquely suited to create diverse and complex organic molecules. The
ability to form single, double, and triple bonds, along with the capacity to form stable covalent
bonds and long polymer chains, are all essential properties for the molecular complexity required
for life.
**Distractor Analysis:**
- **A:** Carbon's ability to form stable covalent bonds is a key property. This is true.
- **B:** Carbon can indeed form single (C–C), double (C=C), and triple (C≡C) bonds.
- **D:** Carbon's ability to form long chains (catenation) is fundamental to organic chemistry
and biochemistry.
---
## Question 4
**Which element is NOT typically found in living organisms?**
A) Nitrogen (N)
B) Helium (He)
C) Hydrogen (H)
D) Oxygen (O)
**Correct Answer: B**
