BIOS 256 WEEK 5 QUIZ EXAM 3
(Latest Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A –
Chamberlain
1. Which type of anemia is caused by vitamin B12 deficiency?
A. Iron-deficiency anemia
B. Pernicious anemia
C. Hemolytic anemia
D. Aplastic anemia
Correct Answer: B
Rationale: Pernicious anemia results from vitamin B12 deficiency,
impairing RBC production.
2. Which WBC is the first responder to bacterial infections?
A. Lymphocytes
B. Neutrophils
C. Eosinophils
D. Basophils
,Correct Answer: B
Rationale: Neutrophils quickly migrate to bacterial infection sites
and perform phagocytosis.
3. Which WBC increases during parasitic infections?
A. Neutrophils
B. Eosinophils
C. Basophils
D. Lymphocytes
Correct Answer: B
Rationale: Eosinophils release toxic proteins that combat
multicellular parasites.
4. Which plasma protein maintains osmotic pressure?
A. Albumin
B. Globulin
C. Fibrinogen
D. Hemoglobin
Correct Answer: A
Rationale: Albumin prevents fluid loss from capillaries,
maintaining blood volume and pressure.
5. Which plasma protein is converted to fibrin during clotting?
,A. Albumin
B. Globulin
C. Fibrinogen
D. Hemoglobin
Correct Answer: C
Rationale: Fibrinogen is cleaved by thrombin to form fibrin,
creating a blood clot.
6. Which WBC releases histamine during allergic reactions?
A. Neutrophils
B. Basophils
C. Eosinophils
D. Monocytes
Correct Answer: B
Rationale: Basophils release histamine to promote inflammation
and vascular permeability.
7. Which WBC produces antibodies?
A. B cells
B. T cells
C. NK cells
D. Monocytes
, Correct Answer: A
Rationale: B cells differentiate into plasma cells that secrete
antibodies against specific antigens.
8. Which WBC matures in the thymus?
A. B cells
B. T cells
C. NK cells
D. Monocytes
Correct Answer: B
Rationale: T cells mature in the thymus to perform cellular
immunity.
9. Which WBC attacks virus-infected cells?
A. B cells
B. T cells
C. NK cells
D. Monocytes
Correct Answer: C
Rationale: NK cells destroy abnormal or virus-infected cells without
prior exposure.
10. Which formed element transports oxygen?
(Latest Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A –
Chamberlain
1. Which type of anemia is caused by vitamin B12 deficiency?
A. Iron-deficiency anemia
B. Pernicious anemia
C. Hemolytic anemia
D. Aplastic anemia
Correct Answer: B
Rationale: Pernicious anemia results from vitamin B12 deficiency,
impairing RBC production.
2. Which WBC is the first responder to bacterial infections?
A. Lymphocytes
B. Neutrophils
C. Eosinophils
D. Basophils
,Correct Answer: B
Rationale: Neutrophils quickly migrate to bacterial infection sites
and perform phagocytosis.
3. Which WBC increases during parasitic infections?
A. Neutrophils
B. Eosinophils
C. Basophils
D. Lymphocytes
Correct Answer: B
Rationale: Eosinophils release toxic proteins that combat
multicellular parasites.
4. Which plasma protein maintains osmotic pressure?
A. Albumin
B. Globulin
C. Fibrinogen
D. Hemoglobin
Correct Answer: A
Rationale: Albumin prevents fluid loss from capillaries,
maintaining blood volume and pressure.
5. Which plasma protein is converted to fibrin during clotting?
,A. Albumin
B. Globulin
C. Fibrinogen
D. Hemoglobin
Correct Answer: C
Rationale: Fibrinogen is cleaved by thrombin to form fibrin,
creating a blood clot.
6. Which WBC releases histamine during allergic reactions?
A. Neutrophils
B. Basophils
C. Eosinophils
D. Monocytes
Correct Answer: B
Rationale: Basophils release histamine to promote inflammation
and vascular permeability.
7. Which WBC produces antibodies?
A. B cells
B. T cells
C. NK cells
D. Monocytes
, Correct Answer: A
Rationale: B cells differentiate into plasma cells that secrete
antibodies against specific antigens.
8. Which WBC matures in the thymus?
A. B cells
B. T cells
C. NK cells
D. Monocytes
Correct Answer: B
Rationale: T cells mature in the thymus to perform cellular
immunity.
9. Which WBC attacks virus-infected cells?
A. B cells
B. T cells
C. NK cells
D. Monocytes
Correct Answer: C
Rationale: NK cells destroy abnormal or virus-infected cells without
prior exposure.
10. Which formed element transports oxygen?
