,BIOL251/BIOL 251 Module 1 Exam | Human Anatomy &
Physiology I w/ Lab | Portage Learning | Q & A | 2026/2027
(PDF)
**1. Which of the following is the study of the function of the human body?**
A) Anatomy
B) Histology
C) Physiology
D) Cytology
Correct Answer: Physiology
Rationale: Physiology is the study of the function of the human body, while anatomy is the study of its
structure. Histology is the study of tissues, and cytology is the study of cells. The principle of
complementarity states that structure determines function, linking these two branches of science.
**2. The study of the structure of body parts is called:**
A) Physiology
B) Anatomy
C) Pathological physiology
D) Homeostasis
Correct Answer: Anatomy
Rationale: Anatomy is the study of the structure of the body, including what structures are made of and
where they are located. It can be divided into gross anatomy (large visible structures) and microscopic
anatomy (structures studied using a microscope). Physiology is the study of function.
**3. The principle of complementarity states that:**
A) The body is composed of complementary organ systems
B) A structure's shape (anatomy) determines its function (physiology)
,C) All cells have complementary functions
D) The left and right sides of the body are mirror images
Correct Answer: A structure's shape (anatomy) determines its function (physiology)
Rationale: The principle of complementarity asserts that a structure's shape (anatomy) determines its
function (physiology). For example, the small intestine has villi that increase surface area for absorption,
demonstrating how structure enables function.
**4. What is the correct order of the levels of structural organization in the human body, from simplest
to most complex?**
A) Chemical → Cellular → Tissue → Organ → Organ System → Organismal
B) Cellular → Chemical → Tissue → Organ → Organ System → Organismal
C) Chemical → Tissue → Cellular → Organ → Organ System → Organismal
D) Tissue → Cellular → Chemical → Organ → Organ System → Organismal
Correct Answer: Chemical → Cellular → Tissue → Organ → Organ System → Organismal
Rationale: The levels of structural organization, from simplest to most complex, are: Chemical → Cellular
→ Tissue → Organ → Organ System → Organismal. Atoms combine to form molecules, which combine
to form cells. Cells combine to form tissues, which combine to form organs. Organs work together to
form organ systems, which combine to make up an organism.
**5. Which of the following is an example of the organ level of organization?**
A) A neuron
B) Cardiac muscle tissue
C) The liver
D) A protein molecule
Correct Answer: The liver
, Rationale: The liver is an organ composed of multiple tissues (epithelial, connective, nervous, and
muscular) working together. A neuron is at the cellular level, cardiac muscle tissue is at the tissue level,
and a protein molecule is at the chemical level.
**6. The skin is an example of which level of structural organization?**
A) Cellular
B) Tissue
C) Organ
D) Organ system
Correct Answer: Organ
Rationale: The skin is classified as an organ because it is composed of multiple tissue types (epithelial,
connective, nervous, and muscular) working together to perform specific functions. It is the largest
organ of the integumentary system.
**7. Which of the following best describes the anatomical position?**
A) Body lying face down, arms at sides
B) Body standing erect, feet parallel, palms facing forward
C) Body sitting upright with legs extended
D) Body facing sideways with arms crossed
Correct Answer: Body standing erect, feet parallel, palms facing forward
Rationale: The anatomical position is a standardized reference posture with the body erect, feet slightly
apart, and palms facing forward. This position is used as a reference for describing anatomical structures
and directional terms.
**8. Which anatomical orientation term means "toward the front of the body"?**
A) Superior
B) Inferior
Physiology I w/ Lab | Portage Learning | Q & A | 2026/2027
(PDF)
**1. Which of the following is the study of the function of the human body?**
A) Anatomy
B) Histology
C) Physiology
D) Cytology
Correct Answer: Physiology
Rationale: Physiology is the study of the function of the human body, while anatomy is the study of its
structure. Histology is the study of tissues, and cytology is the study of cells. The principle of
complementarity states that structure determines function, linking these two branches of science.
**2. The study of the structure of body parts is called:**
A) Physiology
B) Anatomy
C) Pathological physiology
D) Homeostasis
Correct Answer: Anatomy
Rationale: Anatomy is the study of the structure of the body, including what structures are made of and
where they are located. It can be divided into gross anatomy (large visible structures) and microscopic
anatomy (structures studied using a microscope). Physiology is the study of function.
**3. The principle of complementarity states that:**
A) The body is composed of complementary organ systems
B) A structure's shape (anatomy) determines its function (physiology)
,C) All cells have complementary functions
D) The left and right sides of the body are mirror images
Correct Answer: A structure's shape (anatomy) determines its function (physiology)
Rationale: The principle of complementarity asserts that a structure's shape (anatomy) determines its
function (physiology). For example, the small intestine has villi that increase surface area for absorption,
demonstrating how structure enables function.
**4. What is the correct order of the levels of structural organization in the human body, from simplest
to most complex?**
A) Chemical → Cellular → Tissue → Organ → Organ System → Organismal
B) Cellular → Chemical → Tissue → Organ → Organ System → Organismal
C) Chemical → Tissue → Cellular → Organ → Organ System → Organismal
D) Tissue → Cellular → Chemical → Organ → Organ System → Organismal
Correct Answer: Chemical → Cellular → Tissue → Organ → Organ System → Organismal
Rationale: The levels of structural organization, from simplest to most complex, are: Chemical → Cellular
→ Tissue → Organ → Organ System → Organismal. Atoms combine to form molecules, which combine
to form cells. Cells combine to form tissues, which combine to form organs. Organs work together to
form organ systems, which combine to make up an organism.
**5. Which of the following is an example of the organ level of organization?**
A) A neuron
B) Cardiac muscle tissue
C) The liver
D) A protein molecule
Correct Answer: The liver
, Rationale: The liver is an organ composed of multiple tissues (epithelial, connective, nervous, and
muscular) working together. A neuron is at the cellular level, cardiac muscle tissue is at the tissue level,
and a protein molecule is at the chemical level.
**6. The skin is an example of which level of structural organization?**
A) Cellular
B) Tissue
C) Organ
D) Organ system
Correct Answer: Organ
Rationale: The skin is classified as an organ because it is composed of multiple tissue types (epithelial,
connective, nervous, and muscular) working together to perform specific functions. It is the largest
organ of the integumentary system.
**7. Which of the following best describes the anatomical position?**
A) Body lying face down, arms at sides
B) Body standing erect, feet parallel, palms facing forward
C) Body sitting upright with legs extended
D) Body facing sideways with arms crossed
Correct Answer: Body standing erect, feet parallel, palms facing forward
Rationale: The anatomical position is a standardized reference posture with the body erect, feet slightly
apart, and palms facing forward. This position is used as a reference for describing anatomical structures
and directional terms.
**8. Which anatomical orientation term means "toward the front of the body"?**
A) Superior
B) Inferior
