BIOS 256 WEEK 1 QUIZ FINAL EXAM
(Latest Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A –
Chamberlain
1. What is the primary structural unit of the body?
A. Tissue
B. Cell
C. Organ
D. System
Correct Answer: B
Rationale: The cell is the basic structural and functional unit of life.
2. What level of organization is composed of similar cells
performing a specific function?
A. Organism
B. Organ
C. Tissue
D. System
Correct Answer: C
Rationale: Tissues are groups of similar cells working together.
,3. What is the function of the circulatory system?
A. Transport nutrients and oxygen
B. Digest food
C. Produce hormones
D. Remove wastes
Correct Answer: A
Rationale: The circulatory system moves blood, carrying oxygen
and nutrients to tissues.
4. Which organelle is known as the powerhouse of the cell?
A. Nucleus
B. Mitochondria
C. Ribosome
D. Golgi apparatus
Correct Answer: B
Rationale: Mitochondria produce ATP through cellular respiration.
5. Which organelle is responsible for protein synthesis?
A. Lysosome
B. Ribosome
C. Mitochondria
D. Nucleus
,Correct Answer: B
Rationale: Ribosomes assemble amino acids into proteins.
6. What is homeostasis?
A. Maintaining stable internal conditions
B. Movement of blood
C. Growth of tissues
D. Reproduction
Correct Answer: A
Rationale: Homeostasis keeps internal conditions stable despite
external changes.
7. What type of feedback reverses a change to maintain stability?
A. Positive feedback
B. Negative feedback
C. Neutral feedback
D. Active feedback
Correct Answer: B
Rationale: Negative feedback restores balance by counteracting
changes.
8. Which system controls rapid responses in the body?
A. Nervous system
B. Endocrine system
, C. Digestive system
D. Skeletal system
Correct Answer: A
Rationale: The nervous system transmits fast electrical signals.
9. Which system regulates long-term processes via hormones?
A. Nervous system
B. Endocrine system
C. Muscular system
D. Circulatory system
Correct Answer: B
Rationale: Hormones regulate processes over time.
10. What is diffusion?
A. Movement from low to high concentration
B. Movement from high to low concentration
C. Energy-requiring transport
D. Osmosis
Correct Answer: B
Rationale: Diffusion moves molecules down their concentration
gradient.
11. What is osmosis?
(Latest Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A –
Chamberlain
1. What is the primary structural unit of the body?
A. Tissue
B. Cell
C. Organ
D. System
Correct Answer: B
Rationale: The cell is the basic structural and functional unit of life.
2. What level of organization is composed of similar cells
performing a specific function?
A. Organism
B. Organ
C. Tissue
D. System
Correct Answer: C
Rationale: Tissues are groups of similar cells working together.
,3. What is the function of the circulatory system?
A. Transport nutrients and oxygen
B. Digest food
C. Produce hormones
D. Remove wastes
Correct Answer: A
Rationale: The circulatory system moves blood, carrying oxygen
and nutrients to tissues.
4. Which organelle is known as the powerhouse of the cell?
A. Nucleus
B. Mitochondria
C. Ribosome
D. Golgi apparatus
Correct Answer: B
Rationale: Mitochondria produce ATP through cellular respiration.
5. Which organelle is responsible for protein synthesis?
A. Lysosome
B. Ribosome
C. Mitochondria
D. Nucleus
,Correct Answer: B
Rationale: Ribosomes assemble amino acids into proteins.
6. What is homeostasis?
A. Maintaining stable internal conditions
B. Movement of blood
C. Growth of tissues
D. Reproduction
Correct Answer: A
Rationale: Homeostasis keeps internal conditions stable despite
external changes.
7. What type of feedback reverses a change to maintain stability?
A. Positive feedback
B. Negative feedback
C. Neutral feedback
D. Active feedback
Correct Answer: B
Rationale: Negative feedback restores balance by counteracting
changes.
8. Which system controls rapid responses in the body?
A. Nervous system
B. Endocrine system
, C. Digestive system
D. Skeletal system
Correct Answer: A
Rationale: The nervous system transmits fast electrical signals.
9. Which system regulates long-term processes via hormones?
A. Nervous system
B. Endocrine system
C. Muscular system
D. Circulatory system
Correct Answer: B
Rationale: Hormones regulate processes over time.
10. What is diffusion?
A. Movement from low to high concentration
B. Movement from high to low concentration
C. Energy-requiring transport
D. Osmosis
Correct Answer: B
Rationale: Diffusion moves molecules down their concentration
gradient.
11. What is osmosis?
