ANATOMY AND PHYSIOLOGY COMPREHENSIVE
PRACTICE EXAMINATION 2026–2027 — STUDY GUIDE
| LATEST UPDATE 2026/2027 | PRACTICE QUESTIONS
AND ANSWERS | EXAM REVIEW | 100% CORRECT
ANSWERS | VERIFIED SOLUTIONS | ALREADY
GRADED A+
1. Which of the following is the basic structural and functional unit of all living
organisms?
A) Organ
B) Tissue
C) Cell
D) Organ system
Correct Answer: C
The cell is the basic structural and functional unit of life. Tissues are groups of
similar cells; organs are composed of two or more tissue types; organ systems are
groups of organs.
2. Which organelle is the primary site of adenosine triphosphate (ATP)
production?
A) Ribosome
B) Mitochondrion
C) Golgi apparatus
D) Lysosome
Correct Answer: B
Mitochondria produce ATP through oxidative phosphorylation and are often called
the powerhouses of the cell. Ribosomes synthesize proteins; Golgi modifies and
packages proteins; lysosomes digest waste.
, 3. Which type of tissue covers body surfaces and lines hollow organs?
A) Muscle tissue
B) Nervous tissue
C) Epithelial tissue
D) Connective tissue
Correct Answer: C
Epithelial tissue covers and lines body surfaces and cavities. Muscle tissue
contracts; nervous tissue conducts impulses; connective tissue supports and
connects structures.
4. The anatomical term "superior" means:
A) Toward the back
B) Toward the feet
C) Toward the head or above
D) Toward the midline
Correct Answer: C
Superior means toward the head or upper part of the body. Posterior or dorsal
means toward the back; inferior means toward the feet; medial means toward the
midline.
5. Which plane divides the body into right and left halves?
A) Transverse
B) Frontal
C) Sagittal
D) Oblique
Correct Answer: C
A sagittal plane divides the body into right and left portions; a midsagittal plane
divides into equal halves. Transverse divides superior/inferior; frontal (coronal)
divides anterior/posterior; oblique is at an angle.
6. What is the primary function of the sodium-potassium pump?
A) To equalize sodium and potassium concentrations
B) To move sodium out of and potassium into the cell using ATP
, C) To produce ATP
D) To synthesize proteins
Correct Answer: B
The Na⁺/K⁺ ATPase pump actively transports 3 Na⁺ out and 2 K⁺ into the cell,
maintaining resting membrane potential. It does not equalize concentrations; it
creates concentration gradients. ATP is used, not produced.
7. Which type of passive transport uses a carrier protein but does not require
ATP?
A) Simple diffusion
B) Facilitated diffusion
C) Osmosis
D) Active transport
Correct Answer: B
Facilitated diffusion uses carrier proteins to move molecules down their
concentration gradient without ATP. Simple diffusion occurs directly through the
membrane; osmosis is water diffusion; active transport requires ATP.
8. The epidermis is classified as which type of tissue?
A) Stratified squamous epithelium
B) Simple columnar epithelium
C) Pseudostratified ciliated columnar epithelium
D) Transitional epithelium
Correct Answer: A
The epidermis is keratinized stratified squamous epithelium, providing protection
against abrasion and water loss. Simple columnar lines digestive tract;
pseudostratified ciliated lines respiratory tract; transitional lines bladder.
9. Which skin layer contains blood vessels, nerve endings, and hair follicles?
A) Epidermis
B) Dermis
C) Hypodermis
D) Stratum corneum only
, Correct Answer: B
The dermis contains blood vessels, nerves, glands, and hair follicles. The epidermis
is avascular. The hypodermis is subcutaneous tissue with fat and loose connective
tissue. The stratum corneum is the outermost epidermal layer.
10.What is the primary function of melanin?
A) To produce vitamin D
B) To protect skin from ultraviolet radiation
C) To store fat
D) To produce sweat
Correct Answer: B
Melanin absorbs ultraviolet radiation, protecting DNA from damage. Vitamin D is
synthesized in skin but not by melanin. Fat is stored in hypodermis. Sweat is
produced by sweat glands.
11.Which bone cell is responsible for bone resorption?
A) Osteoblast
B) Osteocyte
C) Osteoclast
D) Chondrocyte
Correct Answer: C
Osteoclasts break down bone tissue during growth, repair, and calcium release.
Osteoblasts build bone; osteocytes are mature bone cells; chondrocytes form
cartilage.
12.The axial skeleton includes which of the following?
A) Clavicle and scapula
B) Skull, vertebral column, and rib cage
C) Pelvic girdle and lower limbs
D) Upper limbs only
Correct Answer: B
The axial skeleton includes the skull, vertebral column, and thoracic cage. The
PRACTICE EXAMINATION 2026–2027 — STUDY GUIDE
| LATEST UPDATE 2026/2027 | PRACTICE QUESTIONS
AND ANSWERS | EXAM REVIEW | 100% CORRECT
ANSWERS | VERIFIED SOLUTIONS | ALREADY
GRADED A+
1. Which of the following is the basic structural and functional unit of all living
organisms?
A) Organ
B) Tissue
C) Cell
D) Organ system
Correct Answer: C
The cell is the basic structural and functional unit of life. Tissues are groups of
similar cells; organs are composed of two or more tissue types; organ systems are
groups of organs.
2. Which organelle is the primary site of adenosine triphosphate (ATP)
production?
A) Ribosome
B) Mitochondrion
C) Golgi apparatus
D) Lysosome
Correct Answer: B
Mitochondria produce ATP through oxidative phosphorylation and are often called
the powerhouses of the cell. Ribosomes synthesize proteins; Golgi modifies and
packages proteins; lysosomes digest waste.
, 3. Which type of tissue covers body surfaces and lines hollow organs?
A) Muscle tissue
B) Nervous tissue
C) Epithelial tissue
D) Connective tissue
Correct Answer: C
Epithelial tissue covers and lines body surfaces and cavities. Muscle tissue
contracts; nervous tissue conducts impulses; connective tissue supports and
connects structures.
4. The anatomical term "superior" means:
A) Toward the back
B) Toward the feet
C) Toward the head or above
D) Toward the midline
Correct Answer: C
Superior means toward the head or upper part of the body. Posterior or dorsal
means toward the back; inferior means toward the feet; medial means toward the
midline.
5. Which plane divides the body into right and left halves?
A) Transverse
B) Frontal
C) Sagittal
D) Oblique
Correct Answer: C
A sagittal plane divides the body into right and left portions; a midsagittal plane
divides into equal halves. Transverse divides superior/inferior; frontal (coronal)
divides anterior/posterior; oblique is at an angle.
6. What is the primary function of the sodium-potassium pump?
A) To equalize sodium and potassium concentrations
B) To move sodium out of and potassium into the cell using ATP
, C) To produce ATP
D) To synthesize proteins
Correct Answer: B
The Na⁺/K⁺ ATPase pump actively transports 3 Na⁺ out and 2 K⁺ into the cell,
maintaining resting membrane potential. It does not equalize concentrations; it
creates concentration gradients. ATP is used, not produced.
7. Which type of passive transport uses a carrier protein but does not require
ATP?
A) Simple diffusion
B) Facilitated diffusion
C) Osmosis
D) Active transport
Correct Answer: B
Facilitated diffusion uses carrier proteins to move molecules down their
concentration gradient without ATP. Simple diffusion occurs directly through the
membrane; osmosis is water diffusion; active transport requires ATP.
8. The epidermis is classified as which type of tissue?
A) Stratified squamous epithelium
B) Simple columnar epithelium
C) Pseudostratified ciliated columnar epithelium
D) Transitional epithelium
Correct Answer: A
The epidermis is keratinized stratified squamous epithelium, providing protection
against abrasion and water loss. Simple columnar lines digestive tract;
pseudostratified ciliated lines respiratory tract; transitional lines bladder.
9. Which skin layer contains blood vessels, nerve endings, and hair follicles?
A) Epidermis
B) Dermis
C) Hypodermis
D) Stratum corneum only
, Correct Answer: B
The dermis contains blood vessels, nerves, glands, and hair follicles. The epidermis
is avascular. The hypodermis is subcutaneous tissue with fat and loose connective
tissue. The stratum corneum is the outermost epidermal layer.
10.What is the primary function of melanin?
A) To produce vitamin D
B) To protect skin from ultraviolet radiation
C) To store fat
D) To produce sweat
Correct Answer: B
Melanin absorbs ultraviolet radiation, protecting DNA from damage. Vitamin D is
synthesized in skin but not by melanin. Fat is stored in hypodermis. Sweat is
produced by sweat glands.
11.Which bone cell is responsible for bone resorption?
A) Osteoblast
B) Osteocyte
C) Osteoclast
D) Chondrocyte
Correct Answer: C
Osteoclasts break down bone tissue during growth, repair, and calcium release.
Osteoblasts build bone; osteocytes are mature bone cells; chondrocytes form
cartilage.
12.The axial skeleton includes which of the following?
A) Clavicle and scapula
B) Skull, vertebral column, and rib cage
C) Pelvic girdle and lower limbs
D) Upper limbs only
Correct Answer: B
The axial skeleton includes the skull, vertebral column, and thoracic cage. The
