1
ANATOMY & PHYSIOLOGY 1 EXAM WITH ACTUAL
QUESTIONS AND ANSWERS
2026 JUST RELEASED VERSION\99%TOP SCORE
This exam assesses your knowledge of the structure and function of the human
body. You can expect questions covering:
• Cell biology – structure, function, and processes of cells
• Tissues – types, characteristics, and locations
• Integumentary system – skin, hair, nails, and associated structures
• Skeletal system – bones, joints, and bone physiology
• Muscular system – muscle types, structure, and contraction
• Nervous system (basic) – neurons, neuroglia, and signal transmission
The exam includes multiple-choice questions with answers and rationales to help
you understand key concepts. Focus on understanding relationships between
structure and function, rather than memorizing facts alone.
1. Which organelle is primarily responsible for producing ATP through cellular
respiration?
A. Nucleus
B. Mitochondrion
C. Ribosome
D. Golgi apparatus
,2
Answer: B
Rationale: The mitochondrion generates ATP by oxidizing nutrients during cellular
respiration.
2. Which type of tissue is specialized for rapid communication via electrical
impulses?
A. Muscle tissue
B. Nervous tissue
C. Epithelial tissue
D. Connective tissue
Answer: B
Rationale: Nervous tissue, composed of neurons and neuroglia, transmits
electrical signals throughout the body.
3. The extracellular matrix of connective tissue is composed mainly of:
A. Actin and myosin
B. Collagen, elastin, and ground substance
C. Keratin and melanin
D. Phospholipids
Answer: B
Rationale: Connective tissue ECM provides structural support, flexibility, and
tensile strength.
4. Which bone cell is responsible for breaking down bone tissue during
remodeling?
A. Osteoblast
B. Osteocyte
,3
C. Osteoclast
D. Chondrocyte
Answer: C
Rationale: Osteoclasts resorb bone, allowing remodeling and calcium regulation.
5. In a synovial joint, which structure secretes synovial fluid to reduce friction?
A. Articular cartilage
B. Synovial membrane
C. Ligament
D. Tendon
Answer: B
Rationale: The synovial membrane produces synovial fluid for lubrication within
the joint cavity.
6. Which type of epithelial tissue lines the alveoli of the lungs for gas exchange?
A. Stratified squamous
B. Simple squamous
C. Simple cuboidal
D. Pseudostratified columnar
Answer: B
Rationale: Simple squamous epithelium is thin, allowing efficient diffusion of
gases in the alveoli.
7. During muscle contraction, which protein filaments slide past each other to
shorten the sarcomere?
A. Actin and myosin
B. Collagen and elastin
, 4
C. Keratin and laminin
D. Troponin and tropomyosin
Answer: A
Rationale: Actin (thin) and myosin (thick) filaments slide during contraction,
shortening the sarcomere and generating force.
8. The resting membrane potential of a neuron is primarily maintained by which
mechanism?
A. Sodium-potassium pump
B. Diffusion of oxygen
C. Calcium channels
D. Gap junctions
Answer: A
Rationale: The Na⁺/K⁺ pump maintains a negative resting membrane potential by
actively transporting Na⁺ out and K⁺ in.
9. Which layer of the epidermis contains living keratinocytes undergoing
mitosis?
A. Stratum corneum
B. Stratum basale
C. Stratum lucidum
D. Stratum granulosum
Answer: B
Rationale: The stratum basale is the deepest layer of the epidermis; cells divide to
replace superficial keratinocytes.
10. During endochondral ossification, which type of tissue is replaced by bone?
ANATOMY & PHYSIOLOGY 1 EXAM WITH ACTUAL
QUESTIONS AND ANSWERS
2026 JUST RELEASED VERSION\99%TOP SCORE
This exam assesses your knowledge of the structure and function of the human
body. You can expect questions covering:
• Cell biology – structure, function, and processes of cells
• Tissues – types, characteristics, and locations
• Integumentary system – skin, hair, nails, and associated structures
• Skeletal system – bones, joints, and bone physiology
• Muscular system – muscle types, structure, and contraction
• Nervous system (basic) – neurons, neuroglia, and signal transmission
The exam includes multiple-choice questions with answers and rationales to help
you understand key concepts. Focus on understanding relationships between
structure and function, rather than memorizing facts alone.
1. Which organelle is primarily responsible for producing ATP through cellular
respiration?
A. Nucleus
B. Mitochondrion
C. Ribosome
D. Golgi apparatus
,2
Answer: B
Rationale: The mitochondrion generates ATP by oxidizing nutrients during cellular
respiration.
2. Which type of tissue is specialized for rapid communication via electrical
impulses?
A. Muscle tissue
B. Nervous tissue
C. Epithelial tissue
D. Connective tissue
Answer: B
Rationale: Nervous tissue, composed of neurons and neuroglia, transmits
electrical signals throughout the body.
3. The extracellular matrix of connective tissue is composed mainly of:
A. Actin and myosin
B. Collagen, elastin, and ground substance
C. Keratin and melanin
D. Phospholipids
Answer: B
Rationale: Connective tissue ECM provides structural support, flexibility, and
tensile strength.
4. Which bone cell is responsible for breaking down bone tissue during
remodeling?
A. Osteoblast
B. Osteocyte
,3
C. Osteoclast
D. Chondrocyte
Answer: C
Rationale: Osteoclasts resorb bone, allowing remodeling and calcium regulation.
5. In a synovial joint, which structure secretes synovial fluid to reduce friction?
A. Articular cartilage
B. Synovial membrane
C. Ligament
D. Tendon
Answer: B
Rationale: The synovial membrane produces synovial fluid for lubrication within
the joint cavity.
6. Which type of epithelial tissue lines the alveoli of the lungs for gas exchange?
A. Stratified squamous
B. Simple squamous
C. Simple cuboidal
D. Pseudostratified columnar
Answer: B
Rationale: Simple squamous epithelium is thin, allowing efficient diffusion of
gases in the alveoli.
7. During muscle contraction, which protein filaments slide past each other to
shorten the sarcomere?
A. Actin and myosin
B. Collagen and elastin
, 4
C. Keratin and laminin
D. Troponin and tropomyosin
Answer: A
Rationale: Actin (thin) and myosin (thick) filaments slide during contraction,
shortening the sarcomere and generating force.
8. The resting membrane potential of a neuron is primarily maintained by which
mechanism?
A. Sodium-potassium pump
B. Diffusion of oxygen
C. Calcium channels
D. Gap junctions
Answer: A
Rationale: The Na⁺/K⁺ pump maintains a negative resting membrane potential by
actively transporting Na⁺ out and K⁺ in.
9. Which layer of the epidermis contains living keratinocytes undergoing
mitosis?
A. Stratum corneum
B. Stratum basale
C. Stratum lucidum
D. Stratum granulosum
Answer: B
Rationale: The stratum basale is the deepest layer of the epidermis; cells divide to
replace superficial keratinocytes.
10. During endochondral ossification, which type of tissue is replaced by bone?
