BIOS 252 Week 7 Quiz Exam 4 (Latest
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. The main function of blood is to:
A. Digest food
B. Transport substances throughout the body
C. Produce hormones only
D. Store energy only
Correct Answer: B
Rationale: Blood carries oxygen, nutrients, hormones, and wastes to
and from tissues.
2. Whole blood is composed of:
A. Plasma and formed elements
B. Only plasma
C. Only red blood cells
D. Only platelets
Correct Answer: A
Rationale: Formed elements include RBCs, WBCs, and platelets
suspended in plasma.
,3. Hematocrit refers to:
A. The proportion of blood volume occupied by red blood cells
B. Plasma protein concentration only
C. White blood cell count only
D. Platelet count only
Correct Answer: A
Rationale: Indicates oxygen-carrying capacity and overall blood
health.
4. The majority of plasma is:
A. Water
B. Proteins only
C. Electrolytes only
D. Hormones only
Correct Answer: A
Rationale: Plasma is ~90% water, allowing transport of dissolved
substances.
5. Albumin in plasma functions to:
A. Maintain osmotic pressure
B. Carry oxygen only
C. Form clots only
D. Fight infection only
Correct Answer: A
,Rationale: Helps retain water in the bloodstream and maintain
blood volume.
6. Globulins in plasma are important for:
A. Immune defense and transport of substances
B. Oxygen transport only
C. Clotting only
D. RBC formation only
Correct Answer: A
Rationale: Include antibodies (immunoglobulins) and transport
proteins.
7. Fibrinogen is:
A. A clotting factor in plasma
B. RBC protein only
C. WBC only
D. Platelet only
Correct Answer: A
Rationale: Converted to fibrin during clot formation to stabilize
blood clots.
8. Red blood cells are also called:
A. Erythrocytes
B. Leukocytes
C. Thrombocytes
, D. Plasma cells
Correct Answer: A
Rationale: Specialized for oxygen transport using hemoglobin.
9. White blood cells are also called:
A. Leukocytes
B. Erythrocytes
C. Platelets
D. Plasma cells
Correct Answer: A
Rationale: Involved in defense against infections and foreign
substances.
10. Platelets are also called:
A. Thrombocytes
B. Erythrocytes
C. Leukocytes
D. Plasma cells
Correct Answer: A
Rationale: Fragments of megakaryocytes that aid in blood clotting.
11. The oxygen-binding protein in RBCs is:
A. Hemoglobin
B. Myosin
C. Collagen
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. The main function of blood is to:
A. Digest food
B. Transport substances throughout the body
C. Produce hormones only
D. Store energy only
Correct Answer: B
Rationale: Blood carries oxygen, nutrients, hormones, and wastes to
and from tissues.
2. Whole blood is composed of:
A. Plasma and formed elements
B. Only plasma
C. Only red blood cells
D. Only platelets
Correct Answer: A
Rationale: Formed elements include RBCs, WBCs, and platelets
suspended in plasma.
,3. Hematocrit refers to:
A. The proportion of blood volume occupied by red blood cells
B. Plasma protein concentration only
C. White blood cell count only
D. Platelet count only
Correct Answer: A
Rationale: Indicates oxygen-carrying capacity and overall blood
health.
4. The majority of plasma is:
A. Water
B. Proteins only
C. Electrolytes only
D. Hormones only
Correct Answer: A
Rationale: Plasma is ~90% water, allowing transport of dissolved
substances.
5. Albumin in plasma functions to:
A. Maintain osmotic pressure
B. Carry oxygen only
C. Form clots only
D. Fight infection only
Correct Answer: A
,Rationale: Helps retain water in the bloodstream and maintain
blood volume.
6. Globulins in plasma are important for:
A. Immune defense and transport of substances
B. Oxygen transport only
C. Clotting only
D. RBC formation only
Correct Answer: A
Rationale: Include antibodies (immunoglobulins) and transport
proteins.
7. Fibrinogen is:
A. A clotting factor in plasma
B. RBC protein only
C. WBC only
D. Platelet only
Correct Answer: A
Rationale: Converted to fibrin during clot formation to stabilize
blood clots.
8. Red blood cells are also called:
A. Erythrocytes
B. Leukocytes
C. Thrombocytes
, D. Plasma cells
Correct Answer: A
Rationale: Specialized for oxygen transport using hemoglobin.
9. White blood cells are also called:
A. Leukocytes
B. Erythrocytes
C. Platelets
D. Plasma cells
Correct Answer: A
Rationale: Involved in defense against infections and foreign
substances.
10. Platelets are also called:
A. Thrombocytes
B. Erythrocytes
C. Leukocytes
D. Plasma cells
Correct Answer: A
Rationale: Fragments of megakaryocytes that aid in blood clotting.
11. The oxygen-binding protein in RBCs is:
A. Hemoglobin
B. Myosin
C. Collagen
