Test Bank Advanced Nutrition and Human Metabolism 9th Edition Gropper & Carr
Chapter 01: The Cell: A Microcosm of Life—Fueled by Nutrients
1. Which cellular organelle is responsible for producing most of the metabolic energy (ATP) used by cells?
a. Endoplasmic reticulum
b. Mitochondrion
c. Golgi apparatus
d. Lysosome
ANSWER: b
POINTS: 1
DIFFICULTY: Easy
REFERENCES: Chapter 1, Section 1.1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: ADVA.GROP.27.1.1 - Identify cellular components and their functions.
KEYWORDS: Remember
2. What is the primary function of the plasma membrane in a cell?
a. It synthesizes proteins required for normal cellular functions.
b. It regulates movement of substances entering and leaving the cell.
c. It stores genetic information necessary for cellular reproduction.
d. It produces digestive enzymes used for intracellular breakdown.
ANSWER: b
POINTS: 1
DIFFICULTY: Easy
REFERENCES: Chapter 1, Section 1.1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: ADVA.GROP.27.1.1 - Identify cellular components and their functions.
KEYWORDS: Remember
3. Which organelle contains digestive enzymes that break down proteins, lipids, and nucleic acids?
a. Peroxisome
b. Ribosome
c. Lysosome
d. Nucleus
ANSWER: c
POINTS: 1
DIFFICULTY: Easy
REFERENCES: Chapter 1, Section 1.1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: ADVA.GROP.27.1.1 - Identify cellular components and their functions.
KEYWORDS: Remember
4. What distinguishes rough endoplasmic reticulum from smooth endoplasmic reticulum?
a. Rough ER synthesizes lipids, while smooth ER synthesizes proteins.
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,Chapter 01: The Cell: A Microcosm of Life—Fueled by Nutrients
b. Rough ER has ribosomes attached, while smooth ER does not.
c. Rough ER is found only in muscle cells, while smooth ER is universal.
d. Rough ER stores calcium, while smooth ER processes carbohydrates.
ANSWER: b
POINTS: 1
DIFFICULTY: Easy
REFERENCES: Chapter 1, Section 1.1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: ADVA.GROP.27.1.1 - Identify cellular components and their functions.
KEYWORDS: Remember
5. Which component of the cytoskeleton provides mechanical support and influences cell shape?
a. Microfilaments
b. Intermediate filaments
c. Microtubules
d. Ribosomes
ANSWER: c
POINTS: 1
DIFFICULTY: Easy
REFERENCES: Chapter 1, Section 1.1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: ADVA.GROP.27.1.1 - Identify cellular components and their functions.
KEYWORDS: Remember
6. How do receptors that generate internal chemical signals typically function in cellular communication?
a. They directly transport substances across the membrane.
b. They produce cyclic AMP as a second messenger.
c. They internalize ligands through endocytosis.
d. They form ion channels for passive transport.
ANSWER: b
POINTS: 1
DIFFICULTY: Medium
REFERENCES: Chapter 1, Section 1.2
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: ADVA.GROP.27.1.2 - Describe the roles of cell receptors and enzymes.
KEYWORDS: Understand
7. What role do G-proteins play in receptor-mediated cellular signaling?
a. They transport nutrients across cell membranes.
b. They activate adenyl cyclase to produce cAMP.
c. They digest cellular waste products.
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,Chapter 01: The Cell: A Microcosm of Life—Fueled by Nutrients
d. They synthesize new membrane proteins.
ANSWER: b
POINTS: 1
DIFFICULTY: Medium
REFERENCES: Chapter 1, Section 1.2
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: ADVA.GROP.27.1.2 - Describe the roles of cell receptors and enzymes.
KEYWORDS: Understand
8. Which type of receptor allows substances to pass from one side of the cell membrane to the other?
a. Ion channel receptors
b. Transport protein receptors
c. Internal signal receptors
d. Internalization receptors
ANSWER: a
POINTS: 1
DIFFICULTY: Easy
REFERENCES: Chapter 1, Section 1.2
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: ADVA.GROP.27.1.2 - Describe the roles of cell receptors and enzymes.
KEYWORDS: Remember
9. What determines the specificity of an enzyme's active site?
a. The concentration of substrate molecules available
b. The temperature and pH of the cellular environment
c. The amino acid sequence and three-dimensional structure
d. The presence of cofactors and coenzymes only
ANSWER: c
POINTS: 1
DIFFICULTY: Medium
REFERENCES: Chapter 1, Section 1.2
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: ADVA.GROP.27.1.2 - Describe the roles of cell receptors and enzymes.
KEYWORDS: Understand
10. How does covalent modification regulate enzyme activity in cellular metabolism?
a. By changing substrate concentration within the cellular environment
b. By adding or removing phosphate groups on enzyme molecules
c. By increasing the synthesis of new enzyme molecules in cells
d. By altering intracellular pH levels affecting enzyme activity
ANSWER: b
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, Chapter 01: The Cell: A Microcosm of Life—Fueled by Nutrients
POINTS: 1
DIFFICULTY: Medium
REFERENCES: Chapter 1, Section 1.2
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: ADVA.GROP.27.1.3 - Explain the mechanisms by which enzymatic reactions are regulated.
KEYWORDS: Understand
11. What characterizes allosteric enzyme regulation in metabolic pathways?
a. Enzymes are synthesized at higher rates during metabolic demand.
b. Modulators bind to sites other than the active site to influence activity.
c. Phosphate groups modify enzyme structure through phosphorylation.
d. Substrate concentration directly controls the rate of enzyme activity.
ANSWER: b
POINTS: 1
DIFFICULTY: Medium
REFERENCES: Chapter 1, Section 1.2
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: ADVA.GROP.27.1.3 - Explain the mechanisms by which enzymatic reactions are regulated.
KEYWORDS: Understand
12. Why does phosphofructokinase serve as an effective regulatory enzyme in glycolysis?
a. It catalyzes a reversible reaction that occurs near equilibrium.
b. It responds to both positive and negative allosteric modulators.
c. It requires no cofactors or coenzymes for catalytic activity.
d. It functions independently of changes in cellular energy status.
ANSWER: b
POINTS: 1
DIFFICULTY: Medium
REFERENCES: Chapter 1, Section 1.2
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: ADVA.GROP.27.1.3 - Explain the mechanisms by which enzymatic reactions are regulated.
KEYWORDS: Understand
13. What is enzyme induction in the context of metabolic regulation?
a. The phosphorylation of existing enzymes to increase activity
b. The binding of modulators to allosteric sites on enzymes
c. The increased synthesis of specific enzymes when needed
d. The removal of inhibitory factors from enzyme active sites
ANSWER: c
POINTS: 1
DIFFICULTY: Medium
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Chapter 01: The Cell: A Microcosm of Life—Fueled by Nutrients
1. Which cellular organelle is responsible for producing most of the metabolic energy (ATP) used by cells?
a. Endoplasmic reticulum
b. Mitochondrion
c. Golgi apparatus
d. Lysosome
ANSWER: b
POINTS: 1
DIFFICULTY: Easy
REFERENCES: Chapter 1, Section 1.1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: ADVA.GROP.27.1.1 - Identify cellular components and their functions.
KEYWORDS: Remember
2. What is the primary function of the plasma membrane in a cell?
a. It synthesizes proteins required for normal cellular functions.
b. It regulates movement of substances entering and leaving the cell.
c. It stores genetic information necessary for cellular reproduction.
d. It produces digestive enzymes used for intracellular breakdown.
ANSWER: b
POINTS: 1
DIFFICULTY: Easy
REFERENCES: Chapter 1, Section 1.1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: ADVA.GROP.27.1.1 - Identify cellular components and their functions.
KEYWORDS: Remember
3. Which organelle contains digestive enzymes that break down proteins, lipids, and nucleic acids?
a. Peroxisome
b. Ribosome
c. Lysosome
d. Nucleus
ANSWER: c
POINTS: 1
DIFFICULTY: Easy
REFERENCES: Chapter 1, Section 1.1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: ADVA.GROP.27.1.1 - Identify cellular components and their functions.
KEYWORDS: Remember
4. What distinguishes rough endoplasmic reticulum from smooth endoplasmic reticulum?
a. Rough ER synthesizes lipids, while smooth ER synthesizes proteins.
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,Chapter 01: The Cell: A Microcosm of Life—Fueled by Nutrients
b. Rough ER has ribosomes attached, while smooth ER does not.
c. Rough ER is found only in muscle cells, while smooth ER is universal.
d. Rough ER stores calcium, while smooth ER processes carbohydrates.
ANSWER: b
POINTS: 1
DIFFICULTY: Easy
REFERENCES: Chapter 1, Section 1.1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: ADVA.GROP.27.1.1 - Identify cellular components and their functions.
KEYWORDS: Remember
5. Which component of the cytoskeleton provides mechanical support and influences cell shape?
a. Microfilaments
b. Intermediate filaments
c. Microtubules
d. Ribosomes
ANSWER: c
POINTS: 1
DIFFICULTY: Easy
REFERENCES: Chapter 1, Section 1.1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: ADVA.GROP.27.1.1 - Identify cellular components and their functions.
KEYWORDS: Remember
6. How do receptors that generate internal chemical signals typically function in cellular communication?
a. They directly transport substances across the membrane.
b. They produce cyclic AMP as a second messenger.
c. They internalize ligands through endocytosis.
d. They form ion channels for passive transport.
ANSWER: b
POINTS: 1
DIFFICULTY: Medium
REFERENCES: Chapter 1, Section 1.2
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: ADVA.GROP.27.1.2 - Describe the roles of cell receptors and enzymes.
KEYWORDS: Understand
7. What role do G-proteins play in receptor-mediated cellular signaling?
a. They transport nutrients across cell membranes.
b. They activate adenyl cyclase to produce cAMP.
c. They digest cellular waste products.
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,Chapter 01: The Cell: A Microcosm of Life—Fueled by Nutrients
d. They synthesize new membrane proteins.
ANSWER: b
POINTS: 1
DIFFICULTY: Medium
REFERENCES: Chapter 1, Section 1.2
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: ADVA.GROP.27.1.2 - Describe the roles of cell receptors and enzymes.
KEYWORDS: Understand
8. Which type of receptor allows substances to pass from one side of the cell membrane to the other?
a. Ion channel receptors
b. Transport protein receptors
c. Internal signal receptors
d. Internalization receptors
ANSWER: a
POINTS: 1
DIFFICULTY: Easy
REFERENCES: Chapter 1, Section 1.2
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: ADVA.GROP.27.1.2 - Describe the roles of cell receptors and enzymes.
KEYWORDS: Remember
9. What determines the specificity of an enzyme's active site?
a. The concentration of substrate molecules available
b. The temperature and pH of the cellular environment
c. The amino acid sequence and three-dimensional structure
d. The presence of cofactors and coenzymes only
ANSWER: c
POINTS: 1
DIFFICULTY: Medium
REFERENCES: Chapter 1, Section 1.2
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: ADVA.GROP.27.1.2 - Describe the roles of cell receptors and enzymes.
KEYWORDS: Understand
10. How does covalent modification regulate enzyme activity in cellular metabolism?
a. By changing substrate concentration within the cellular environment
b. By adding or removing phosphate groups on enzyme molecules
c. By increasing the synthesis of new enzyme molecules in cells
d. By altering intracellular pH levels affecting enzyme activity
ANSWER: b
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, Chapter 01: The Cell: A Microcosm of Life—Fueled by Nutrients
POINTS: 1
DIFFICULTY: Medium
REFERENCES: Chapter 1, Section 1.2
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: ADVA.GROP.27.1.3 - Explain the mechanisms by which enzymatic reactions are regulated.
KEYWORDS: Understand
11. What characterizes allosteric enzyme regulation in metabolic pathways?
a. Enzymes are synthesized at higher rates during metabolic demand.
b. Modulators bind to sites other than the active site to influence activity.
c. Phosphate groups modify enzyme structure through phosphorylation.
d. Substrate concentration directly controls the rate of enzyme activity.
ANSWER: b
POINTS: 1
DIFFICULTY: Medium
REFERENCES: Chapter 1, Section 1.2
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: ADVA.GROP.27.1.3 - Explain the mechanisms by which enzymatic reactions are regulated.
KEYWORDS: Understand
12. Why does phosphofructokinase serve as an effective regulatory enzyme in glycolysis?
a. It catalyzes a reversible reaction that occurs near equilibrium.
b. It responds to both positive and negative allosteric modulators.
c. It requires no cofactors or coenzymes for catalytic activity.
d. It functions independently of changes in cellular energy status.
ANSWER: b
POINTS: 1
DIFFICULTY: Medium
REFERENCES: Chapter 1, Section 1.2
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: ADVA.GROP.27.1.3 - Explain the mechanisms by which enzymatic reactions are regulated.
KEYWORDS: Understand
13. What is enzyme induction in the context of metabolic regulation?
a. The phosphorylation of existing enzymes to increase activity
b. The binding of modulators to allosteric sites on enzymes
c. The increased synthesis of specific enzymes when needed
d. The removal of inhibitory factors from enzyme active sites
ANSWER: c
POINTS: 1
DIFFICULTY: Medium
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