HUMAN PHYSIOLOGY EXAMINATION QUESTIONS AND
CORRECT ANSWER WITH EXPLANATION GRADED A+
STUDY GUIDE SOUTHERN NEW HAMPSHIRE UNIVERSITY
1. Human physiology is the study of:
A. Body functions
B. Body structure only
C. Weather systems
D. Plant classification
Answer: A
Rationale: Physiology examines how body systems function.
2. Homeostasis refers to:
A. Maintenance of stable internal conditions
B. Bone formation only
C. Blood clotting only
D. Digestion only
Answer: A
Rationale: Essential for normal body function.
3. The basic functional unit of the body is the:
A. Cell
B. Tissue
C. Organ
D. Organ system
Answer: A
Rationale: Cells perform life processes.
4. The cell membrane functions mainly in:
A. Regulating movement of substances
B. Producing blood
C. Protein digestion
D. Bone formation
Answer: A
Rationale: Selectively permeable barrier.
5. Diffusion is the movement of substances from:
A. High to low concentration
, B. Low to high concentration
C. Equal concentrations only
D. Blood to bone
Answer: A
Rationale: Passive transport process.
6. Osmosis is the movement of:
A. Water across a membrane
B. Proteins only
C. Oxygen only
D. Hormones only
Answer: A
Rationale: Water transport through semipermeable membrane.
7. ATP is the main source of:
A. Cellular energy
B. Oxygen
C. Hormones
D. Enzymes
Answer: A
Rationale: Energy currency of cells.
8. Mitochondria are responsible for:
A. Energy production
B. Protein packaging
C. DNA storage only
D. Digestion only
Answer: A
Rationale: Site of cellular respiration.
9. Enzymes function as:
A. Biological catalysts
B. Hormones
C. Structural proteins
D. Antibodies
Answer: A
Rationale: Speed up chemical reactions.
10. Metabolism includes:
A. All chemical reactions in the body
, B. Digestion only
C. Respiration only
D. Circulation only
Answer: A
Rationale: Includes anabolism and catabolism.
11. The nervous system controls the body through:
A. Electrical impulses
B. Blood flow only
C. Bone growth only
D. Hormones only
Answer: A
Rationale: Rapid communication system.
12. The functional unit of the nervous system is the:
A. Neuron
B. Nephron
C. Alveolus
D. Osteon
Answer: A
Rationale: Conducts nerve impulses.
13. The brain and spinal cord form the:
A. Central nervous system
B. Peripheral nervous system
C. Endocrine system
D. Lymphatic system
Answer: A
Rationale: Main control center.
14. The autonomic nervous system controls:
A. Involuntary activities
B. Voluntary skeletal muscles only
C. Bone growth only
D. Vision only
Answer: A
Rationale: Regulates internal organs.
15. The sympathetic nervous system prepares the body for:
A. Fight or flight
CORRECT ANSWER WITH EXPLANATION GRADED A+
STUDY GUIDE SOUTHERN NEW HAMPSHIRE UNIVERSITY
1. Human physiology is the study of:
A. Body functions
B. Body structure only
C. Weather systems
D. Plant classification
Answer: A
Rationale: Physiology examines how body systems function.
2. Homeostasis refers to:
A. Maintenance of stable internal conditions
B. Bone formation only
C. Blood clotting only
D. Digestion only
Answer: A
Rationale: Essential for normal body function.
3. The basic functional unit of the body is the:
A. Cell
B. Tissue
C. Organ
D. Organ system
Answer: A
Rationale: Cells perform life processes.
4. The cell membrane functions mainly in:
A. Regulating movement of substances
B. Producing blood
C. Protein digestion
D. Bone formation
Answer: A
Rationale: Selectively permeable barrier.
5. Diffusion is the movement of substances from:
A. High to low concentration
, B. Low to high concentration
C. Equal concentrations only
D. Blood to bone
Answer: A
Rationale: Passive transport process.
6. Osmosis is the movement of:
A. Water across a membrane
B. Proteins only
C. Oxygen only
D. Hormones only
Answer: A
Rationale: Water transport through semipermeable membrane.
7. ATP is the main source of:
A. Cellular energy
B. Oxygen
C. Hormones
D. Enzymes
Answer: A
Rationale: Energy currency of cells.
8. Mitochondria are responsible for:
A. Energy production
B. Protein packaging
C. DNA storage only
D. Digestion only
Answer: A
Rationale: Site of cellular respiration.
9. Enzymes function as:
A. Biological catalysts
B. Hormones
C. Structural proteins
D. Antibodies
Answer: A
Rationale: Speed up chemical reactions.
10. Metabolism includes:
A. All chemical reactions in the body
, B. Digestion only
C. Respiration only
D. Circulation only
Answer: A
Rationale: Includes anabolism and catabolism.
11. The nervous system controls the body through:
A. Electrical impulses
B. Blood flow only
C. Bone growth only
D. Hormones only
Answer: A
Rationale: Rapid communication system.
12. The functional unit of the nervous system is the:
A. Neuron
B. Nephron
C. Alveolus
D. Osteon
Answer: A
Rationale: Conducts nerve impulses.
13. The brain and spinal cord form the:
A. Central nervous system
B. Peripheral nervous system
C. Endocrine system
D. Lymphatic system
Answer: A
Rationale: Main control center.
14. The autonomic nervous system controls:
A. Involuntary activities
B. Voluntary skeletal muscles only
C. Bone growth only
D. Vision only
Answer: A
Rationale: Regulates internal organs.
15. The sympathetic nervous system prepares the body for:
A. Fight or flight
