Ivy Tech APHY 101 Final Exam Actual Exam
2026/2027 – Complete Exam-Style Questions
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[SECTION 1: Introduction & Chemical Basis of Life — Questions 1-12]
Q1: Which of the following best describes the standard anatomical position used as a reference
point in Anatomy and Physiology?
A. Body is lying down (supine) with arms at sides.
B. Body is standing upright, arms at sides, palms facing backward, and feet slightly apart.
C. Body is standing upright, facing forward, arms at sides with palms facing forward, and feet
flat on the floor.
D. Body is sitting erect with hands resting on the lap.
C. [Correct answer] [CORRECT]
Correct Answer: C
Rationale: The anatomical position is universally defined as the body standing erect, facing
forward, with the upper limbs at the sides and the palms facing forward (supinated). This
standard ensures directional terms like "superior" and "anterior" are consistent. Option A
describes the supine position. Option B is incorrect because the palms must face forward. Option
D is a seated position, not the standard reference.
Q2: Homeostasis is best defined as:
A. A state of dynamic equilibrium where internal conditions vary within narrow limits.
B. The tendency for the body to change its internal environment to match the external
environment.
C. A static state where internal variables never change.
D. A condition where positive feedback loops are the primary mechanism of control.
C. [Correct answer] [CORRECT]
,2
Correct Answer: A
Rationale: Homeostasis refers to the body's ability to maintain relative stability in its internal
environment despite external changes; it is a dynamic fluctuation around a set point, not a static
state. Option B is incorrect because the body resists changes in the external environment. Option
C is incorrect because internal variables do fluctuate slightly. Option D is incorrect because
positive feedback loops amplify changes rather than maintaining stability.
Q3: A patient has a cut on their forearm that is closer to the elbow than to the wrist. In
anatomical terms, this injury is:
A. Distal.
B. Lateral.
C. Proximal.
D. Superficial.
C. [Correct answer] [CORRECT]
Correct Answer: C
Rationale: "Proximal" describes a position closer to the point of attachment or origin of a
structure (the trunk for limbs). Since the elbow is closer to the trunk than the wrist, a cut near the
elbow is proximal. Option A (Distal) would be closer to the wrist. Option B (Lateral) refers to the
side of the body. Option D refers to near the surface.
Q4: Which of the following correctly describes the location of the heart within the thoracic
cavity?
A. It is located in the dorsal cavity, posterior to the vertebral column.
B. It is located within the mediastinum, between the lungs and superior to the diaphragm.
C. It is located in the abdominopelvic cavity, inferior to the stomach.
D. It is located in the pleural cavity, specifically within the left lung tissue.
C. [Correct answer] [CORRECT]
,3
Correct Answer: B
Rationale: The heart is located in the mediastinum, the central portion of the thoracic cavity. It
rests on the superior surface of the diaphragm, between the two lungs. Option A is incorrect
because the heart is ventral, not dorsal. Option C is incorrect because the heart is thoracic, not
abdominopelvic. Option D is incorrect because the heart is in the mediastinum, not inside the
lung tissue.
Q5: Water is essential for life due to its unique properties. Which property refers to water's
ability to act as a solvent for polar molecules?
A. Adhesion.
B. High Heat of Vaporization.
C. Cohesion.
D. Universal Solvent.
C. [Correct answer] [CORRECT]
Correct Answer: D
Rationale: Water is often called the "universal solvent" because of its polarity; its slightly
negative oxygen and slightly positive hydrogen ends attract and surround other polar molecules,
dissolving them. Adhesion refers to water sticking to other surfaces, and Cohesion refers to water
sticking to water. High Heat of Vaporization refers to cooling during evaporation.
Q6: Which of the following pH values indicates a strongly acidic solution?
A. 7.0
B. 6.0
C. 2.0
D. 9.0
C. [Correct answer] [CORRECT]
Correct Answer: C
, 4
Rationale: The pH scale ranges from 0 to 14, with 7 being neutral. Values lower than 7 are acidic,
and values higher than 7 are basic. A pH of 2.0 is significantly lower than 7, indicating a strong
acid. Option A is neutral, Option B is weakly acidic, and Option D is basic.
Q7: Carbohydrates are a primary source of energy for the body. Which of the following is a
polysaccharide used for energy storage in the human body?
A. Glucose
B. Sucrose
C. Glycogen
D. Cellulose
C. [Correct answer] [CORRECT]
Correct Answer: C
Rationale: Glycogen is a polysaccharide consisting of many glucose units used to store energy in
the liver and muscle. Glucose (Option A) is a monosaccharide. Sucrose (Option B) is a
disaccharide. Cellulose (Option D) is a structural polysaccharide in plants that humans cannot
digest.
Q8: Which type of lipid is the primary component of the cell membrane and provides a
hydrophilic head and hydrophobic tails?
A. Triglycerides
B. Phospholipids
C. Steroids
D. Waxes
C. [Correct answer] [CORRECT]
Correct Answer: B
Rationale: Phospholipids form the bilayer of the cell membrane, with hydrophobic tails facing
inward and hydrophilic heads facing outward, creating a barrier. Triglycerides are for energy