BIOS 150 Week 5 Quiz Exam final (Latest
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. What is the main role of enzymes in the body?
A. Store energy
B. Speed up reactions
C. Transport oxygen
D. Build tissues
Correct Answer: B. Speed up reactions
Rationale: Enzymes act as biological catalysts that accelerate
chemical reactions.
2. What is homeostasis?
A. Growth of cells
B. Stable internal environment
C. Digestion
D. Movement
Correct Answer: B. Stable internal environment
Rationale: The body maintains balance despite external changes.
,3. Which system transports oxygen in the body?
A. Digestive
B. Circulatory
C. Nervous
D. Endocrine
Correct Answer: B. Circulatory
Rationale: Blood carries oxygen to tissues.
4. What organ is responsible for gas exchange?
A. Heart
B. Lung
C. Kidney
D. Liver
Correct Answer: B. Lung
Rationale: Oxygen enters and carbon dioxide exits in the lungs.
5. What is the function of red blood cells?
A. Fight infection
B. Carry oxygen
C. Clot blood
D. Digest food
Correct Answer: B. Carry oxygen
Rationale: Hemoglobin binds oxygen.
6. What is the function of white blood cells?
,A. Carry oxygen
B. Fight infection
C. Transport nutrients
D. Clot blood
Correct Answer: B. Fight infection
Rationale: They defend against pathogens.
7. What is the function of platelets?
A. Transport oxygen
B. Blood clotting
C. Digestion
D. Respiration
Correct Answer: B. Blood clotting
Rationale: Platelets prevent excessive bleeding.
8. What is the main function of the respiratory system?
A. Digestion
B. Gas exchange
C. Circulation
D. Movement
Correct Answer: B. Gas exchange
Rationale: Exchanges oxygen and carbon dioxide.
9. What muscle helps in breathing?
, A. Heart
B. Diaphragm
C. Liver
D. Kidney
Correct Answer: B. Diaphragm
Rationale: Contracts and relaxes during breathing.
10. What is the main function of the digestive system?
A. Transport oxygen
B. Break down food
C. Pump blood
D. Control body
Correct Answer: B. Break down food
Rationale: Converts food into usable nutrients.
11. Where does digestion begin?
A. Stomach
B. Mouth
C. Small intestine
D. Liver
Correct Answer: B. Mouth
Rationale: Saliva begins chemical digestion.
12. What is the function of the small intestine?
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. What is the main role of enzymes in the body?
A. Store energy
B. Speed up reactions
C. Transport oxygen
D. Build tissues
Correct Answer: B. Speed up reactions
Rationale: Enzymes act as biological catalysts that accelerate
chemical reactions.
2. What is homeostasis?
A. Growth of cells
B. Stable internal environment
C. Digestion
D. Movement
Correct Answer: B. Stable internal environment
Rationale: The body maintains balance despite external changes.
,3. Which system transports oxygen in the body?
A. Digestive
B. Circulatory
C. Nervous
D. Endocrine
Correct Answer: B. Circulatory
Rationale: Blood carries oxygen to tissues.
4. What organ is responsible for gas exchange?
A. Heart
B. Lung
C. Kidney
D. Liver
Correct Answer: B. Lung
Rationale: Oxygen enters and carbon dioxide exits in the lungs.
5. What is the function of red blood cells?
A. Fight infection
B. Carry oxygen
C. Clot blood
D. Digest food
Correct Answer: B. Carry oxygen
Rationale: Hemoglobin binds oxygen.
6. What is the function of white blood cells?
,A. Carry oxygen
B. Fight infection
C. Transport nutrients
D. Clot blood
Correct Answer: B. Fight infection
Rationale: They defend against pathogens.
7. What is the function of platelets?
A. Transport oxygen
B. Blood clotting
C. Digestion
D. Respiration
Correct Answer: B. Blood clotting
Rationale: Platelets prevent excessive bleeding.
8. What is the main function of the respiratory system?
A. Digestion
B. Gas exchange
C. Circulation
D. Movement
Correct Answer: B. Gas exchange
Rationale: Exchanges oxygen and carbon dioxide.
9. What muscle helps in breathing?
, A. Heart
B. Diaphragm
C. Liver
D. Kidney
Correct Answer: B. Diaphragm
Rationale: Contracts and relaxes during breathing.
10. What is the main function of the digestive system?
A. Transport oxygen
B. Break down food
C. Pump blood
D. Control body
Correct Answer: B. Break down food
Rationale: Converts food into usable nutrients.
11. Where does digestion begin?
A. Stomach
B. Mouth
C. Small intestine
D. Liver
Correct Answer: B. Mouth
Rationale: Saliva begins chemical digestion.
12. What is the function of the small intestine?
