BIOS 252 Lab Practical Exam 1 (Latest
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. What is the primary function of red blood cells?
A. Carry oxygen
B. Fight infection
C. Clot blood
D. Produce hormones
Correct Answer: A
Rationale: Red blood cells transport oxygen using hemoglobin.
2. Which component of blood is responsible for clotting?
A. Platelets
B. Red blood cells
C. White blood cells
D. Plasma
Correct Answer: A
Rationale: Platelets aggregate at injury sites to form clots.
3. Which white blood cell produces antibodies?
A. B lymphocytes
B. T lymphocytes
C. Neutrophils
D. Monocytes
Correct Answer: A
Rationale: B cells differentiate into plasma cells that secrete
antibodies.
4. Which white blood cell destroys virus-infected cells?
,A. T lymphocytes
B. B lymphocytes
C. Neutrophils
D. Eosinophils
Correct Answer: A
Rationale: Cytotoxic T cells target and destroy infected host cells.
5. Which white blood cell is first to respond to infection?
A. Neutrophils
B. Lymphocytes
C. Monocytes
D. Eosinophils
Correct Answer: A
Rationale: Neutrophils are phagocytic and respond quickly to
infection.
6. Which blood component carries nutrients and hormones?
A. Plasma
B. Red blood cells
C. White blood cells
D. Platelets
Correct Answer: A
Rationale: Plasma is the liquid portion of blood transporting
substances.
7. Which type of anemia is caused by iron deficiency?
A. Microcytic anemia
B. Macrocytic anemia
C. Hemolytic anemia
D. Sickle cell anemia
Correct Answer: A
Rationale: Microcytic anemia is characterized by small, pale red
blood cells.
8. Which type of anemia results from vitamin B12 deficiency?
, A. Macrocytic anemia
B. Microcytic anemia
C. Hemolytic anemia
D. Aplastic anemia
Correct Answer: A
Rationale: Macrocytic anemia has large red blood cells due to
impaired DNA synthesis.
9. Which blood type is the universal donor?
A. O negative
B. A positive
C. AB positive
D. B negative
Correct Answer: A
Rationale: O negative blood has no A, B, or Rh antigens.
10. Which blood type is the universal recipient?
A. AB positive
B. O negative
C. A positive
D. B positive
Correct Answer: A
Rationale: AB positive blood has both A and B antigens and no
antibodies.
11. Which layer of the heart wall contains cardiac muscle?
A. Myocardium
B. Epicardium
C. Endocardium
D. Pericardium
Correct Answer: A
Rationale: Myocardium is responsible for heart contraction.
12. Which heart chamber receives oxygenated blood from lungs?
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. What is the primary function of red blood cells?
A. Carry oxygen
B. Fight infection
C. Clot blood
D. Produce hormones
Correct Answer: A
Rationale: Red blood cells transport oxygen using hemoglobin.
2. Which component of blood is responsible for clotting?
A. Platelets
B. Red blood cells
C. White blood cells
D. Plasma
Correct Answer: A
Rationale: Platelets aggregate at injury sites to form clots.
3. Which white blood cell produces antibodies?
A. B lymphocytes
B. T lymphocytes
C. Neutrophils
D. Monocytes
Correct Answer: A
Rationale: B cells differentiate into plasma cells that secrete
antibodies.
4. Which white blood cell destroys virus-infected cells?
,A. T lymphocytes
B. B lymphocytes
C. Neutrophils
D. Eosinophils
Correct Answer: A
Rationale: Cytotoxic T cells target and destroy infected host cells.
5. Which white blood cell is first to respond to infection?
A. Neutrophils
B. Lymphocytes
C. Monocytes
D. Eosinophils
Correct Answer: A
Rationale: Neutrophils are phagocytic and respond quickly to
infection.
6. Which blood component carries nutrients and hormones?
A. Plasma
B. Red blood cells
C. White blood cells
D. Platelets
Correct Answer: A
Rationale: Plasma is the liquid portion of blood transporting
substances.
7. Which type of anemia is caused by iron deficiency?
A. Microcytic anemia
B. Macrocytic anemia
C. Hemolytic anemia
D. Sickle cell anemia
Correct Answer: A
Rationale: Microcytic anemia is characterized by small, pale red
blood cells.
8. Which type of anemia results from vitamin B12 deficiency?
, A. Macrocytic anemia
B. Microcytic anemia
C. Hemolytic anemia
D. Aplastic anemia
Correct Answer: A
Rationale: Macrocytic anemia has large red blood cells due to
impaired DNA synthesis.
9. Which blood type is the universal donor?
A. O negative
B. A positive
C. AB positive
D. B negative
Correct Answer: A
Rationale: O negative blood has no A, B, or Rh antigens.
10. Which blood type is the universal recipient?
A. AB positive
B. O negative
C. A positive
D. B positive
Correct Answer: A
Rationale: AB positive blood has both A and B antigens and no
antibodies.
11. Which layer of the heart wall contains cardiac muscle?
A. Myocardium
B. Epicardium
C. Endocardium
D. Pericardium
Correct Answer: A
Rationale: Myocardium is responsible for heart contraction.
12. Which heart chamber receives oxygenated blood from lungs?
