BIOS 242 Week 6 Quiz Exam 1 (Latest
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. What is the primary function of hemoglobin?
A. Transport nutrients
B. Fight infection
C. Carry oxygen
D. Regulate pH
Correct Answer : C. Carry oxygen
Rationale: Hemoglobin binds oxygen in the lungs and transports it
to tissues.
2. Which blood type is considered the universal donor?
A. AB+
B. O-
C. A+
D. B-
Correct Answer : B. O-
,Rationale: O- blood lacks A, B, and Rh antigens, reducing risk of
reaction.
3. Which cells are primarily responsible for clot formation?
A. Erythrocytes
B. Leukocytes
C. Platelets
D. Plasma cells
Correct Answer : C. Platelets
Rationale: Platelets aggregate to form clots and prevent bleeding.
4. Where are red blood cells produced?
A. Liver
B. Spleen
C. Bone marrow
D. Kidneys
Correct Answer : C. Bone marrow
Rationale: Hematopoiesis occurs in red bone marrow.
5. What is the lifespan of a red blood cell?
A. 10 days
B. 30 days
C. 60 days
D. 120 days
,Correct Answer : D. 120 days
Rationale: RBCs circulate for about 120 days before being removed.
6. Which leukocyte is most abundant?
A. Basophils
B. Neutrophils
C. Eosinophils
D. Monocytes
Correct Answer : B. Neutrophils
Rationale: Neutrophils make up the largest percentage of WBCs.
7. What is hematocrit?
A. Hemoglobin concentration
B. RBC count
C. Percentage of RBC volume
D. Plasma protein level
Correct Answer : C. Percentage of RBC volume
Rationale: Hematocrit measures proportion of RBCs in blood.
8. Which protein is essential for blood clotting?
A. Albumin
B. Fibrinogen
C. Globulin
D. Hemoglobin
, Correct Answer : B. Fibrinogen
Rationale: Fibrinogen converts to fibrin to form clots.
9. Which organ removes old RBCs?
A. Heart
B. Lungs
C. Spleen
D. Pancreas
Correct Answer : C. Spleen
Rationale: The spleen filters and destroys aged RBCs.
10. What triggers erythropoiesis?
A. High oxygen
B. Low oxygen
C. High glucose
D. Low calcium
Correct Answer : B. Low oxygen
Rationale: Hypoxia stimulates erythropoietin release.
11. Which blood type has no antibodies?
A. A
B. B
C. AB
D. O
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. What is the primary function of hemoglobin?
A. Transport nutrients
B. Fight infection
C. Carry oxygen
D. Regulate pH
Correct Answer : C. Carry oxygen
Rationale: Hemoglobin binds oxygen in the lungs and transports it
to tissues.
2. Which blood type is considered the universal donor?
A. AB+
B. O-
C. A+
D. B-
Correct Answer : B. O-
,Rationale: O- blood lacks A, B, and Rh antigens, reducing risk of
reaction.
3. Which cells are primarily responsible for clot formation?
A. Erythrocytes
B. Leukocytes
C. Platelets
D. Plasma cells
Correct Answer : C. Platelets
Rationale: Platelets aggregate to form clots and prevent bleeding.
4. Where are red blood cells produced?
A. Liver
B. Spleen
C. Bone marrow
D. Kidneys
Correct Answer : C. Bone marrow
Rationale: Hematopoiesis occurs in red bone marrow.
5. What is the lifespan of a red blood cell?
A. 10 days
B. 30 days
C. 60 days
D. 120 days
,Correct Answer : D. 120 days
Rationale: RBCs circulate for about 120 days before being removed.
6. Which leukocyte is most abundant?
A. Basophils
B. Neutrophils
C. Eosinophils
D. Monocytes
Correct Answer : B. Neutrophils
Rationale: Neutrophils make up the largest percentage of WBCs.
7. What is hematocrit?
A. Hemoglobin concentration
B. RBC count
C. Percentage of RBC volume
D. Plasma protein level
Correct Answer : C. Percentage of RBC volume
Rationale: Hematocrit measures proportion of RBCs in blood.
8. Which protein is essential for blood clotting?
A. Albumin
B. Fibrinogen
C. Globulin
D. Hemoglobin
, Correct Answer : B. Fibrinogen
Rationale: Fibrinogen converts to fibrin to form clots.
9. Which organ removes old RBCs?
A. Heart
B. Lungs
C. Spleen
D. Pancreas
Correct Answer : C. Spleen
Rationale: The spleen filters and destroys aged RBCs.
10. What triggers erythropoiesis?
A. High oxygen
B. Low oxygen
C. High glucose
D. Low calcium
Correct Answer : B. Low oxygen
Rationale: Hypoxia stimulates erythropoietin release.
11. Which blood type has no antibodies?
A. A
B. B
C. AB
D. O
