,BIOD 171 Module 2 | Practice Q&A | 2026/2027 | Microbiology |
Portage Learning
1. Which of the following best defines metabolism?
A) The breakdown of food into waste products
B) The production of ATP only
C) The sum of all chemical reactions in a cell
D) The movement of a cell via flagella
Correct Answer: The sum of all chemical reactions in a cell
Rationale: Metabolism is the total of all biochemical processes, including
those that break down molecules for energy (catabolism) and those that
build complex structures (anabolism). It is not limited to breakdown or ATP
production alone.
2. True or False: Metabolism is a controlled set of biochemical reactions that
occur in living organisms in order to maintain life.
A) True
B) False
Correct Answer: True
Rationale: Metabolism is defined as the sum of all controlled biochemical
reactions that maintain life, including catabolism (breakdown) and anabolism
(synthesis). This statement is accurate.
3. True or False: As movement requires energy, metabolism can be defined
as a controlled set of biochemical reactions that occur only in motile
organisms in order to maintain life.
A) True
,B) False
Correct Answer: False
Rationale: Metabolism is universal and occurs in all living organisms
regardless of motility. Non-motile organisms also require metabolism to
maintain life.
4. Define anabolism.
A) The process of breaking down larger molecules into smaller subunits
B) The process of building up macromolecules from smaller molecular units
C) The process of converting ATP to ADP
D) The process of moving molecules across a membrane
Correct Answer: The process of building up macromolecules from smaller
molecular units
Rationale: Anabolism is the building phase of metabolism, involving the
biosynthesis of macromolecules from small molecular units into much larger
complexes.
5. Upon cellular injury, which metabolic process is involved during the growth
and repair phases of the cell?
A) Catabolism
B) Anabolism
C) Fermentation
D) Glycolysis
Correct Answer: Anabolism
, Rationale: The anabolic process would be active as it is involved in the
building up of small complexes into larger complexes for repair and growth.
6. Define catabolism.
A) The process of building up macromolecules from smaller molecular units
B) The process of breaking down larger, complex molecules into smaller
subunits to release useful energy
C) The process of synthesizing ATP from ADP
D) The process of converting glucose to glycogen
Correct Answer: The process of breaking down larger, complex molecules
into smaller subunits to release useful energy
Rationale: Catabolism is the degradative phase of metabolism where larger
molecules are broken into smaller ones, releasing energy stored in chemical
bonds as ATP.
7. What is the primary energy currency of the cell?
A) Glucose
B) NADH
C) ATP
D) ADP
Correct Answer: ATP
Rationale: ATP (adenosine triphosphate) is the energy currency of the cell,
used to drive cellular processes. Glucose is a fuel source, NADH is an
electron carrier, and ADP is the lower-energy form.
Portage Learning
1. Which of the following best defines metabolism?
A) The breakdown of food into waste products
B) The production of ATP only
C) The sum of all chemical reactions in a cell
D) The movement of a cell via flagella
Correct Answer: The sum of all chemical reactions in a cell
Rationale: Metabolism is the total of all biochemical processes, including
those that break down molecules for energy (catabolism) and those that
build complex structures (anabolism). It is not limited to breakdown or ATP
production alone.
2. True or False: Metabolism is a controlled set of biochemical reactions that
occur in living organisms in order to maintain life.
A) True
B) False
Correct Answer: True
Rationale: Metabolism is defined as the sum of all controlled biochemical
reactions that maintain life, including catabolism (breakdown) and anabolism
(synthesis). This statement is accurate.
3. True or False: As movement requires energy, metabolism can be defined
as a controlled set of biochemical reactions that occur only in motile
organisms in order to maintain life.
A) True
,B) False
Correct Answer: False
Rationale: Metabolism is universal and occurs in all living organisms
regardless of motility. Non-motile organisms also require metabolism to
maintain life.
4. Define anabolism.
A) The process of breaking down larger molecules into smaller subunits
B) The process of building up macromolecules from smaller molecular units
C) The process of converting ATP to ADP
D) The process of moving molecules across a membrane
Correct Answer: The process of building up macromolecules from smaller
molecular units
Rationale: Anabolism is the building phase of metabolism, involving the
biosynthesis of macromolecules from small molecular units into much larger
complexes.
5. Upon cellular injury, which metabolic process is involved during the growth
and repair phases of the cell?
A) Catabolism
B) Anabolism
C) Fermentation
D) Glycolysis
Correct Answer: Anabolism
, Rationale: The anabolic process would be active as it is involved in the
building up of small complexes into larger complexes for repair and growth.
6. Define catabolism.
A) The process of building up macromolecules from smaller molecular units
B) The process of breaking down larger, complex molecules into smaller
subunits to release useful energy
C) The process of synthesizing ATP from ADP
D) The process of converting glucose to glycogen
Correct Answer: The process of breaking down larger, complex molecules
into smaller subunits to release useful energy
Rationale: Catabolism is the degradative phase of metabolism where larger
molecules are broken into smaller ones, releasing energy stored in chemical
bonds as ATP.
7. What is the primary energy currency of the cell?
A) Glucose
B) NADH
C) ATP
D) ADP
Correct Answer: ATP
Rationale: ATP (adenosine triphosphate) is the energy currency of the cell,
used to drive cellular processes. Glucose is a fuel source, NADH is an
electron carrier, and ADP is the lower-energy form.
