TEST BANK Principles of Anatomy and Physiology 15th Edition Wiley

TEST BANK PRINCIPLES OF ANATOMY AND
PHYSIOLOGY 15TH EDITION WILEY (CHAPTER 1-29)
QUESTIONS AND CORRECT ANSWERS (VERIFIED
ANSWERS) Q&A 2026 |INSTANT DOWNLOAD PDF
1. Which level of organization is the basic structural and
functional unit of life?
A. Tissue
B. Organ
C. Cell
D. System
Rationale: The cell is the smallest living unit capable of
independent function.
Correct answer: C
2. Homeostasis refers to:
A. Body growth
B. Stable internal environment
C. Cellular division
D. Protein synthesis
Rationale: Homeostasis maintains internal balance despite
external changes.
Correct answer: B
3. Which organelle produces ATP?
A. Ribosome
B. Mitochondria
C. Golgi apparatus

,D. Nucleus
Rationale: Mitochondria are the cell’s energy producers.
Correct answer: B
4. Diffusion is:
A. Active transport
B. Movement against gradient
C. Movement from high to low concentration
D. Vesicular transport
Rationale: Diffusion is passive movement down a concentration
gradient.
Correct answer: C
5. The plasma membrane is primarily composed of:
A. DNA and RNA
B. Lipid bilayer and proteins
C. Carbohydrates only
D. Cellulose
Rationale: Phospholipids form the bilayer with embedded
proteins.
Correct answer: B
6. Which tissue type covers body surfaces?
A. Connective
B. Epithelial
C. Muscle
D. Nervous
Rationale: Epithelial tissue lines and protects surfaces.
Correct answer: B

, 7. The main function of red blood cells is:
A. Immunity
B. Clotting
C. Oxygen transport
D. Hormone secretion
Rationale: RBCs carry oxygen via hemoglobin.
Correct answer: C
8. The basic unit of bone is:
A. Neuron
B. Osteon
C. Sarcomere
D. Chondrocyte
Rationale: Osteons are structural units of compact bone.
Correct answer: B
9. Skeletal muscle is:
A. Involuntary and striated
B. Voluntary and striated
C. Involuntary and smooth
D. Non-striated
Rationale: Skeletal muscle is under conscious control.
Correct answer: B
10. Neurons transmit signals using:
A. Hormones
B. Electrical impulses
C. Enzymes
D. Lipids