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Fundamentals of Biochemistry 6th Edition Test Bank (Voet,
2024) | Chapters 1–26 | Updated 2025–2026
1. The fundamental unit of life is the:
A. Atom
B. Cell
C. Protein
D. Organelle
Answer: B
Difficulty: Easy
Bloom’s: Remember
Learning Objective: LO 1.1 Identify the fundamental unit of life and its
properties
Section Reference: 1.1 Introduction to Biochemistry
2. Which macromolecule is primarily responsible for catalyzing biochemical
reactions?
A. Carbohydrates
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B. Lipids
C. Proteins
D. Nucleic acids
Answer: C
Difficulty: Easy
Bloom’s: Understand
Learning Objective: LO 1.2 Explain the role of proteins in biochemical reactions
Section Reference: 1.2 Biomolecules
3. Evolutionary relationships can be visualized using a _____ tree.
A. Phylogenetic
B. Metabolic
C. Structural
D. Genetic
Answer: A
Difficulty: Easy
Bloom’s: Remember
Learning Objective: LO 1.2 Explain how important features of cell architecture
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relate to the structure and function of cells
Section Reference: 1.2C Cellular Architecture
4. Which element is the most abundant in biological molecules?
A. Nitrogen
B. Carbon
C. Sulfur
D. Phosphorus
Answer: B
Difficulty: Easy
Bloom’s: Remember
Learning Objective: LO 1.3 Identify the elemental composition of biomolecules
Section Reference: 1.3 Chemical Basis of Life
5. The three domains of life are Bacteria, Archaea, and:
A. Protists
B. Eukarya
C. Fungi
D. Plants
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Answer: B
Difficulty: Medium
Bloom’s: Understand
Learning Objective: LO 1.4 Distinguish the domains of life
Section Reference: 1.4 Evolutionary Perspective
6. The plasma membrane is primarily composed of:
A. Polysaccharides
B. Nucleic acids
C. Phospholipids
D. Steroids
Answer: C
Difficulty: Easy
Bloom’s: Remember
Learning Objective: LO 1.2 Explain structural features of cellular membranes
Section Reference: 1.2C Cellular Architecture
7. Which of the following is NOT considered a macromolecule of life?
A. Lipids
Fundamentals of Biochemistry 6th Edition Test Bank (Voet,
2024) | Chapters 1–26 | Updated 2025–2026
1. The fundamental unit of life is the:
A. Atom
B. Cell
C. Protein
D. Organelle
Answer: B
Difficulty: Easy
Bloom’s: Remember
Learning Objective: LO 1.1 Identify the fundamental unit of life and its
properties
Section Reference: 1.1 Introduction to Biochemistry
2. Which macromolecule is primarily responsible for catalyzing biochemical
reactions?
A. Carbohydrates
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B. Lipids
C. Proteins
D. Nucleic acids
Answer: C
Difficulty: Easy
Bloom’s: Understand
Learning Objective: LO 1.2 Explain the role of proteins in biochemical reactions
Section Reference: 1.2 Biomolecules
3. Evolutionary relationships can be visualized using a _____ tree.
A. Phylogenetic
B. Metabolic
C. Structural
D. Genetic
Answer: A
Difficulty: Easy
Bloom’s: Remember
Learning Objective: LO 1.2 Explain how important features of cell architecture
,3 | Page
relate to the structure and function of cells
Section Reference: 1.2C Cellular Architecture
4. Which element is the most abundant in biological molecules?
A. Nitrogen
B. Carbon
C. Sulfur
D. Phosphorus
Answer: B
Difficulty: Easy
Bloom’s: Remember
Learning Objective: LO 1.3 Identify the elemental composition of biomolecules
Section Reference: 1.3 Chemical Basis of Life
5. The three domains of life are Bacteria, Archaea, and:
A. Protists
B. Eukarya
C. Fungi
D. Plants
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Answer: B
Difficulty: Medium
Bloom’s: Understand
Learning Objective: LO 1.4 Distinguish the domains of life
Section Reference: 1.4 Evolutionary Perspective
6. The plasma membrane is primarily composed of:
A. Polysaccharides
B. Nucleic acids
C. Phospholipids
D. Steroids
Answer: C
Difficulty: Easy
Bloom’s: Remember
Learning Objective: LO 1.2 Explain structural features of cellular membranes
Section Reference: 1.2C Cellular Architecture
7. Which of the following is NOT considered a macromolecule of life?
A. Lipids
