, HESI A2 Anatomy & Physiology Exam: 300+ Practice
Questions with Answers & In-Depth Rationales – 2026
Update | Versions 1 & 2 | Instant Download
1. Which organelle is responsible for ATP production?
• A. Ribosome
• B. Nucleus
• C. Mitochondria
• D. Golgi apparatus
Answer: C. Mitochondria
Rationale: Mitochondria are often called the "powerhouses of the cell" because they
generate adenosine triphosphate (ATP) through cellular respiration.
2. The process by which cells engulf large particles or bacteria is called:
• A. Pinocytosis
• B. Phagocytosis
• C. Exocytosis
• D. Osmosis
Answer: B. Phagocytosis
Rationale: Phagocytosis ("cell eating") is a form of endocytosis where the cell
membrane wraps around large solid particles, such as bacteria, to internalize them.
3. Which organelle modifies, sorts, and packages proteins for secretion?
• A. Rough ER
• B. Smooth ER
• C. Golgi apparatus
• D. Nucleolus
,Answer: C. Golgi apparatus
Rationale: The Golgi apparatus receives proteins from the endoplasmic reticulum,
modifies them (e.g., adding carbohydrates), and packages them into vesicles for
transport.
4. What is the basic unit of life and the building block of tissues and organs?
• A. Atom
• B. Organelle
• C. Cell
• D. DNA
Answer: C. Cell
Rationale: The cell is the basic structural and functional unit of all living organisms.
5. Which term means "toward the midline of the body"?
• A. Lateral
• B. Proximal
• C. Distal
• D. Medial
Answer: D. Medial
Rationale: Medial indicates a position closer to the body's midline, whereas lateral is
farther away from the midline.
6. Which of the following best describes the anatomical position?
• A. Lying face down, arms at the sides
• B. Standing upright, facing the observer, upper extremities at the body's sides,
feet flat and directed forward, and the palms facing anteriorly
• C. Lying face up, arms crossed over the chest
• D. Standing upright with palms facing posteriorly
Answer: B. Standing upright, facing the observer, upper extremities at the body's
sides, feet flat and directed forward, and the palms facing anteriorly
, Rationale: The anatomical position is a standardized reference position used in
anatomy.
7. A section that divides the body into superior and inferior portions is called:
• A. Coronal
• B. Sagittal
• C. Transverse
• D. Dorsal
Answer: C. Transverse
Rationale: A transverse (horizontal) plane cuts perpendicular to the long axis of the
body, creating upper (superior) and lower (inferior) sections.
8. Which type of tissue covers body surfaces and lines body cavities?
• A. Muscle tissue
• B. Nervous tissue
• C. Connective tissue
• D. Epithelial tissue
Answer: D. Epithelial tissue
Rationale: Epithelial tissue forms protective barriers and functions in absorption,
secretion, and sensation. Examples include skin epidermis and intestinal lining.
9. A tissue examined under the microscope exhibits the following characteristics:
cells found on internal surface of stomach, no extracellular matrix, cells tall and
thin, no blood vessels in the tissue. What type of tissue is this?
• A. Epithelial
• B. Connective
• C. Muscle
• D. Cartilage
Questions with Answers & In-Depth Rationales – 2026
Update | Versions 1 & 2 | Instant Download
1. Which organelle is responsible for ATP production?
• A. Ribosome
• B. Nucleus
• C. Mitochondria
• D. Golgi apparatus
Answer: C. Mitochondria
Rationale: Mitochondria are often called the "powerhouses of the cell" because they
generate adenosine triphosphate (ATP) through cellular respiration.
2. The process by which cells engulf large particles or bacteria is called:
• A. Pinocytosis
• B. Phagocytosis
• C. Exocytosis
• D. Osmosis
Answer: B. Phagocytosis
Rationale: Phagocytosis ("cell eating") is a form of endocytosis where the cell
membrane wraps around large solid particles, such as bacteria, to internalize them.
3. Which organelle modifies, sorts, and packages proteins for secretion?
• A. Rough ER
• B. Smooth ER
• C. Golgi apparatus
• D. Nucleolus
,Answer: C. Golgi apparatus
Rationale: The Golgi apparatus receives proteins from the endoplasmic reticulum,
modifies them (e.g., adding carbohydrates), and packages them into vesicles for
transport.
4. What is the basic unit of life and the building block of tissues and organs?
• A. Atom
• B. Organelle
• C. Cell
• D. DNA
Answer: C. Cell
Rationale: The cell is the basic structural and functional unit of all living organisms.
5. Which term means "toward the midline of the body"?
• A. Lateral
• B. Proximal
• C. Distal
• D. Medial
Answer: D. Medial
Rationale: Medial indicates a position closer to the body's midline, whereas lateral is
farther away from the midline.
6. Which of the following best describes the anatomical position?
• A. Lying face down, arms at the sides
• B. Standing upright, facing the observer, upper extremities at the body's sides,
feet flat and directed forward, and the palms facing anteriorly
• C. Lying face up, arms crossed over the chest
• D. Standing upright with palms facing posteriorly
Answer: B. Standing upright, facing the observer, upper extremities at the body's
sides, feet flat and directed forward, and the palms facing anteriorly
, Rationale: The anatomical position is a standardized reference position used in
anatomy.
7. A section that divides the body into superior and inferior portions is called:
• A. Coronal
• B. Sagittal
• C. Transverse
• D. Dorsal
Answer: C. Transverse
Rationale: A transverse (horizontal) plane cuts perpendicular to the long axis of the
body, creating upper (superior) and lower (inferior) sections.
8. Which type of tissue covers body surfaces and lines body cavities?
• A. Muscle tissue
• B. Nervous tissue
• C. Connective tissue
• D. Epithelial tissue
Answer: D. Epithelial tissue
Rationale: Epithelial tissue forms protective barriers and functions in absorption,
secretion, and sensation. Examples include skin epidermis and intestinal lining.
9. A tissue examined under the microscope exhibits the following characteristics:
cells found on internal surface of stomach, no extracellular matrix, cells tall and
thin, no blood vessels in the tissue. What type of tissue is this?
• A. Epithelial
• B. Connective
• C. Muscle
• D. Cartilage
