Which white blood cells function primarily as phagocytotic cells?
A. monocytes and lymphocytes
B. basophils and neutrophils
C. eosinophils and monocytes
D. neutrophils and monocytes
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Question 2) Platelets
A. are also known as thrombocytes.
B. are actually fragments of cells.
C. play a role in preventing blood loss.
D. can become sticky when exposed to connective tissue
E. All of these choices are correct.
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Question 3) The most numerous of the leukocytes is the
A. neutrophil.
B. basophil.
C. eosinophil.
D. lymphocyte.
E. monocyte.
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Question 4) When a person develops a sore throat, white blood cells are drawn to the area of infection by a process called
A. chemotaxis.
B. diapedesis.
C. margination.
D. ameboid movement.
E. attraction.
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Question 5) Lymphocytes
A. are the largest of the leukocytes.
B. migrate to lymphatic tissue.
C. produce histamine.
D. release heparin.
E. are phagocytic.
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Question 6) The ability of white blood cells to leave the circulation and enter tissues is called
A. chemotaxis.
B. diapedesis.
C. margination.
D. intrusion.
E. exocytosis.
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Question 7) In adults, red blood cells are made in one place, spend most of their lifespan in another, and most are finally destroyed in yet another place. Which choice lists these locations in the correct chronological order?
A. bone marrow; blood vessels; spleen
B. bone marrow; spleen; blood vessels
C. spleen; blood vessels; spleen
D. blood vessels; spleen; bone marrow
E. spleen; blood vessels; bone marrow
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Question 8) Which of the following is NOT a consequence of sickle-cell anemia?
A. Red blood cells take on the sickle shape when oxygen levels are low.
B. Sickle-shaped red blood cells can become lodged in capillaries.
C. Tissue damage from decreased blood supply.
D. Sickle-shaped red blood cells are less likely to rupture.
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Question 9) On which chromosome is there a mutation that leads to sickle cell anemia?
A. chromosome 3
B. chromosome 11
C. chromosome 14
D. chromosome 21
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Question 10) Which blood component is NOT correctly matched with its function?
A. erythrocytes - transport oxygen
B. leukocytes - protect against disease
C. platelets - phagocytize bacteria
D. plasma proteins - maintain blood osmotic pressure; involved in clotting
E. monocytes - become macrophages
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