Grand Canyon University BIO-210 Anatomy & Physiology I Exam 1
(pdf) | 2026/2027 | A&P I Q&A | Anatomy
1. Which of the following best defines the study of anatomy?
A) The study of the function of the body
B) The study of the structure and form of the body
C) The study of diseases and their causes
D) The study of cells at a microscopic level
Correct Answer: The study of the structure and form of the body
Rationale: Anatomy is the study of the structure and form of the body and its
parts. Physiology is the study of function. Pathology investigates disease,
and cytology is the study of cells.
2. The study of the function of the human body is termed:
A) Anatomy
B) Physiology
C) Pathology
D) Histology
Correct Answer: Physiology
Rationale: Physiology is the study of the function of the human body.
Anatomy is the study of structure, pathology is the study of disease, and
histology is the study of tissues.
3. The correct order of the six levels of structural organization, from simplest
to most complex, is:
,A) Atoms, cells, tissues, organs, organ systems, organisms
B) Cells, atoms, tissues, organs, organ systems, organisms
C) Atoms, tissues, cells, organs, organ systems, organisms
D) Atoms, cells, organs, tissues, organ systems, organisms
Correct Answer: Atoms, cells, tissues, organs, organ systems, organisms
Rationale: The six levels of structural organization are chemical (atoms),
cellular, tissue, organ, organ system, and organism.
4. The tendency of an organism to maintain a stable internal environment is
called:
A) Metabolism
B) Homeostasis
C) Adaptation
D) Evolution
Correct Answer: Homeostasis
Rationale: Homeostasis is the process by which organisms maintain a
relatively stable internal environment. Metabolism is the sum of all chemical
reactions.
5. In a negative feedback mechanism, the response:
A) Amplifies the original stimulus
B) Shuts off or reduces the original stimulus
C) Has no effect on the original stimulus
D) Creates a new stimulus
,Correct Answer: Shuts off or reduces the original stimulus
Rationale: Negative feedback reduces the stimulus to return the body to a
set point. Positive feedback amplifies the stimulus.
6. Which of the following is an example of a positive feedback mechanism?
A) Regulation of body temperature
B) Blood sugar regulation
C) Blood clotting
D) Control of blood pressure
Correct Answer: Blood clotting
Rationale: Blood clotting is a positive feedback mechanism, as it amplifies
the initial stimulus. Thermoregulation and blood sugar regulation are
examples of negative feedback.
7. The receptor in a homeostatic control system is responsible for:
A) Responding to the stimulus
B) Analyzing the information
C) Determining the set point
D) Responding to changes in the environment (stimuli)
Correct Answer: Responding to changes in the environment (stimuli)
Rationale: The receptor (sensor) responds to changes in the environment and
sends information to the control center.
, 8. The control center in a homeostatic control system is responsible for:
A) Responding to the stimulus
B) Providing a means for response
C) Determining the set point and analyzing information
D) Detecting the stimulus
Correct Answer: Determining the set point and analyzing information
Rationale: The control center determines the set point, analyzes information
from the receptor, and determines the appropriate response.
9. The effector in a homeostatic control system is responsible for:
A) Responding to the stimulus
B) Analyzing the information
C) Determining the set point
D) Providing a means for response to the stimuli
Correct Answer: Providing a means for response to the stimuli
Rationale: The effector provides the means for a response to the stimuli,
carrying out the action determined by the control center.
10. A solution with a pH lower than 7.0 is considered:
A) Neutral
B) Basic
C) Acidic
(pdf) | 2026/2027 | A&P I Q&A | Anatomy
1. Which of the following best defines the study of anatomy?
A) The study of the function of the body
B) The study of the structure and form of the body
C) The study of diseases and their causes
D) The study of cells at a microscopic level
Correct Answer: The study of the structure and form of the body
Rationale: Anatomy is the study of the structure and form of the body and its
parts. Physiology is the study of function. Pathology investigates disease,
and cytology is the study of cells.
2. The study of the function of the human body is termed:
A) Anatomy
B) Physiology
C) Pathology
D) Histology
Correct Answer: Physiology
Rationale: Physiology is the study of the function of the human body.
Anatomy is the study of structure, pathology is the study of disease, and
histology is the study of tissues.
3. The correct order of the six levels of structural organization, from simplest
to most complex, is:
,A) Atoms, cells, tissues, organs, organ systems, organisms
B) Cells, atoms, tissues, organs, organ systems, organisms
C) Atoms, tissues, cells, organs, organ systems, organisms
D) Atoms, cells, organs, tissues, organ systems, organisms
Correct Answer: Atoms, cells, tissues, organs, organ systems, organisms
Rationale: The six levels of structural organization are chemical (atoms),
cellular, tissue, organ, organ system, and organism.
4. The tendency of an organism to maintain a stable internal environment is
called:
A) Metabolism
B) Homeostasis
C) Adaptation
D) Evolution
Correct Answer: Homeostasis
Rationale: Homeostasis is the process by which organisms maintain a
relatively stable internal environment. Metabolism is the sum of all chemical
reactions.
5. In a negative feedback mechanism, the response:
A) Amplifies the original stimulus
B) Shuts off or reduces the original stimulus
C) Has no effect on the original stimulus
D) Creates a new stimulus
,Correct Answer: Shuts off or reduces the original stimulus
Rationale: Negative feedback reduces the stimulus to return the body to a
set point. Positive feedback amplifies the stimulus.
6. Which of the following is an example of a positive feedback mechanism?
A) Regulation of body temperature
B) Blood sugar regulation
C) Blood clotting
D) Control of blood pressure
Correct Answer: Blood clotting
Rationale: Blood clotting is a positive feedback mechanism, as it amplifies
the initial stimulus. Thermoregulation and blood sugar regulation are
examples of negative feedback.
7. The receptor in a homeostatic control system is responsible for:
A) Responding to the stimulus
B) Analyzing the information
C) Determining the set point
D) Responding to changes in the environment (stimuli)
Correct Answer: Responding to changes in the environment (stimuli)
Rationale: The receptor (sensor) responds to changes in the environment and
sends information to the control center.
, 8. The control center in a homeostatic control system is responsible for:
A) Responding to the stimulus
B) Providing a means for response
C) Determining the set point and analyzing information
D) Detecting the stimulus
Correct Answer: Determining the set point and analyzing information
Rationale: The control center determines the set point, analyzes information
from the receptor, and determines the appropriate response.
9. The effector in a homeostatic control system is responsible for:
A) Responding to the stimulus
B) Analyzing the information
C) Determining the set point
D) Providing a means for response to the stimuli
Correct Answer: Providing a means for response to the stimuli
Rationale: The effector provides the means for a response to the stimuli,
carrying out the action determined by the control center.
10. A solution with a pH lower than 7.0 is considered:
A) Neutral
B) Basic
C) Acidic
