BIOD 101 Modules 1-6 & Final Exam Portage
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MODULE 1: Introduction to Medical Biosciences (15 Questions)
Q1: A patient is lying face down on the examination table. What is this anatomical position called?
A. Supine
B. Prone [CORRECT]
C. Lateral recumbent
D. Fowler's
Correct Answer: B
Rationale: The prone position describes lying face down on the abdomen. Supine means lying face up,
while lateral recumbent means lying on one's side. Fowler's position refers to a semi-sitting position
with the head elevated 45–60 degrees.
Q2: Which of the following correctly describes the direction from the elbow to the wrist?
A. Proximal to distal
B. Distal to proximal
C. Superior to inferior
D. Medial to lateral
Correct Answer: B
Rationale: Distal means farther from the point of attachment or trunk, while proximal means closer to
the trunk. Since the wrist is farther from the shoulder (the point of attachment) than the elbow, the
direction from elbow to wrist is distal to proximal.
Q3: The scientific method begins with which step?
A. Forming a hypothesis
,B. Conducting an experiment
C. Making an observation [CORRECT]
D. Drawing a conclusion
Correct Answer: C
Rationale: The scientific method always begins with observation—recognizing a phenomenon or
problem in the natural world. Only after careful observation does a researcher form a hypothesis, design
experiments, and draw conclusions.
Q4: Which body plane divides the body into equal right and left halves?
A. Coronal plane
B. Transverse plane
C. Midsagittal plane [CORRECT]
D. Frontal plane
Correct Answer: C
Rationale: The midsagittal (median) plane is a vertical plane that passes through the midline of the body,
dividing it into symmetrical right and left halves. The coronal (frontal) plane divides anterior from
posterior, and the transverse plane divides superior from inferior.
Q5: Homeostasis is best defined as:
A. The ability to maintain a constant internal environment despite external changes [CORRECT]
B. The process of cellular differentiation
C. The breakdown of complex molecules into simpler ones
D. The movement of molecules against their concentration gradient
Correct Answer: A
Rationale: Homeostasis is the maintenance of a stable internal environment within narrow limits,
despite fluctuations in the external environment. It involves dynamic equilibrium through feedback
mechanisms that regulate variables such as temperature, pH, and blood glucose.
Q6: In the hierarchy of biological organization, which level comes immediately after "tissue"?
A. Cell
B. Organ [CORRECT]
,C. Organ system
D. Organism
Correct Answer: B
Rationale: The correct sequence of biological organization from simplest to most complex is: atom →
molecule → organelle → cell → tissue → organ → organ system → organism. Tissues are groups of
similar cells working together, and organs are structures composed of two or more tissue types
performing specific functions.
Q7: A surgeon makes an incision along the plane that divides the body into anterior and posterior
portions. Which plane was used?
A. Sagittal
B. Transverse
C. Coronal (frontal) [CORRECT]
D. Oblique
Correct Answer: C
Rationale: The coronal (frontal) plane is a vertical plane that divides the body into anterior (front) and
posterior (back) portions. The sagittal plane divides left from right, the transverse plane divides superior
from inferior, and an oblique plane passes through at an angle.
Q8: Which directional term means "toward the midline of the body"?
A. Lateral
B. Medial [CORRECT]
C. Distal
D. Superficial
Correct Answer: B
Rationale: Medial means toward or closer to the midline of the body. Lateral means away from the
midline. Distal refers to being farther from the point of attachment, and superficial means closer to the
body surface.
Q9: The process by which cells become specialized in structure and function is called:
A. Homeostasis
B. Metabolism
, C. Differentiation [CORRECT]
D. Replication
Correct Answer: C
Rationale: Cellular differentiation is the process by which a less specialized cell becomes a more
specialized cell type with a specific structure and function. This process is essential for development and
tissue formation, allowing stem cells to become neurons, muscle cells, or epithelial cells.
Q10: Which of the following is NOT a requirement of life shared by all living organisms?
A. Growth and development
B. Response to stimuli
C. Ability to fly [CORRECT]
D. Reproduction
Correct Answer: C
Rationale: All living organisms share characteristics of life including organization, metabolism, growth,
adaptation, response to stimuli, and reproduction. The ability to fly is not a universal requirement of
life—most organisms (plants, bacteria, fungi, and many animals) cannot fly yet are fully alive.
Q11: Negative feedback mechanisms are characterized by:
A. Amplification of the original stimulus
B. Stabilization of a variable by reversing the direction of change [CORRECT]
C. Continuous acceleration of a physiological process
D. Production of an output that reinforces the stimulus
Correct Answer: B
Rationale: Negative feedback is the most common homeostatic mechanism in the body. It works by
detecting a change in a variable and activating mechanisms that reverse the direction of that change,
thereby stabilizing the internal environment around a set point.
Q12: The term "cephalic" refers to which body region?
A. The foot
B. The head [CORRECT]
C. The trunk
Learning ACTUAL EXAM 2026/2027 | Portage
BIOD 101 Complete | Verified Q&A | Pass
Guaranteed - A+ Graded
MODULE 1: Introduction to Medical Biosciences (15 Questions)
Q1: A patient is lying face down on the examination table. What is this anatomical position called?
A. Supine
B. Prone [CORRECT]
C. Lateral recumbent
D. Fowler's
Correct Answer: B
Rationale: The prone position describes lying face down on the abdomen. Supine means lying face up,
while lateral recumbent means lying on one's side. Fowler's position refers to a semi-sitting position
with the head elevated 45–60 degrees.
Q2: Which of the following correctly describes the direction from the elbow to the wrist?
A. Proximal to distal
B. Distal to proximal
C. Superior to inferior
D. Medial to lateral
Correct Answer: B
Rationale: Distal means farther from the point of attachment or trunk, while proximal means closer to
the trunk. Since the wrist is farther from the shoulder (the point of attachment) than the elbow, the
direction from elbow to wrist is distal to proximal.
Q3: The scientific method begins with which step?
A. Forming a hypothesis
,B. Conducting an experiment
C. Making an observation [CORRECT]
D. Drawing a conclusion
Correct Answer: C
Rationale: The scientific method always begins with observation—recognizing a phenomenon or
problem in the natural world. Only after careful observation does a researcher form a hypothesis, design
experiments, and draw conclusions.
Q4: Which body plane divides the body into equal right and left halves?
A. Coronal plane
B. Transverse plane
C. Midsagittal plane [CORRECT]
D. Frontal plane
Correct Answer: C
Rationale: The midsagittal (median) plane is a vertical plane that passes through the midline of the body,
dividing it into symmetrical right and left halves. The coronal (frontal) plane divides anterior from
posterior, and the transverse plane divides superior from inferior.
Q5: Homeostasis is best defined as:
A. The ability to maintain a constant internal environment despite external changes [CORRECT]
B. The process of cellular differentiation
C. The breakdown of complex molecules into simpler ones
D. The movement of molecules against their concentration gradient
Correct Answer: A
Rationale: Homeostasis is the maintenance of a stable internal environment within narrow limits,
despite fluctuations in the external environment. It involves dynamic equilibrium through feedback
mechanisms that regulate variables such as temperature, pH, and blood glucose.
Q6: In the hierarchy of biological organization, which level comes immediately after "tissue"?
A. Cell
B. Organ [CORRECT]
,C. Organ system
D. Organism
Correct Answer: B
Rationale: The correct sequence of biological organization from simplest to most complex is: atom →
molecule → organelle → cell → tissue → organ → organ system → organism. Tissues are groups of
similar cells working together, and organs are structures composed of two or more tissue types
performing specific functions.
Q7: A surgeon makes an incision along the plane that divides the body into anterior and posterior
portions. Which plane was used?
A. Sagittal
B. Transverse
C. Coronal (frontal) [CORRECT]
D. Oblique
Correct Answer: C
Rationale: The coronal (frontal) plane is a vertical plane that divides the body into anterior (front) and
posterior (back) portions. The sagittal plane divides left from right, the transverse plane divides superior
from inferior, and an oblique plane passes through at an angle.
Q8: Which directional term means "toward the midline of the body"?
A. Lateral
B. Medial [CORRECT]
C. Distal
D. Superficial
Correct Answer: B
Rationale: Medial means toward or closer to the midline of the body. Lateral means away from the
midline. Distal refers to being farther from the point of attachment, and superficial means closer to the
body surface.
Q9: The process by which cells become specialized in structure and function is called:
A. Homeostasis
B. Metabolism
, C. Differentiation [CORRECT]
D. Replication
Correct Answer: C
Rationale: Cellular differentiation is the process by which a less specialized cell becomes a more
specialized cell type with a specific structure and function. This process is essential for development and
tissue formation, allowing stem cells to become neurons, muscle cells, or epithelial cells.
Q10: Which of the following is NOT a requirement of life shared by all living organisms?
A. Growth and development
B. Response to stimuli
C. Ability to fly [CORRECT]
D. Reproduction
Correct Answer: C
Rationale: All living organisms share characteristics of life including organization, metabolism, growth,
adaptation, response to stimuli, and reproduction. The ability to fly is not a universal requirement of
life—most organisms (plants, bacteria, fungi, and many animals) cannot fly yet are fully alive.
Q11: Negative feedback mechanisms are characterized by:
A. Amplification of the original stimulus
B. Stabilization of a variable by reversing the direction of change [CORRECT]
C. Continuous acceleration of a physiological process
D. Production of an output that reinforces the stimulus
Correct Answer: B
Rationale: Negative feedback is the most common homeostatic mechanism in the body. It works by
detecting a change in a variable and activating mechanisms that reverse the direction of that change,
thereby stabilizing the internal environment around a set point.
Q12: The term "cephalic" refers to which body region?
A. The foot
B. The head [CORRECT]
C. The trunk
