BIOL 252 Final Exam Study Guide: 300
Questions and Answers Covering
Cardiovascular, Respiratory,
Lymphatic, Endocrine, and
Reproductive Systems ||Guaranteed
Pass
1. Which laboratory safety item should always be worn when
handling biological specimens?
• A. Sandals
• B. Gloves
• C. Jewelry
• D. Loose clothing
• Answer: B
2. Which microscope objective provides the greatest magnification?
• A. 4×
• B. 10×
• C. 40×
• D. 100× (oil immersion)
• Answer: D
3. The sinoatrial (SA) node is known as the:
• A. Atrioventricular node
• B. Pacemaker of the heart
• C. Bundle of His
• D. Purkinje fibers
• Answer: B
4. Which ECG wave represents ventricular depolarization?
, • A. P wave
• B. T wave
• C. QRS complex
• D. U wave
• Answer: C
5. Which blood cell lacks a nucleus when mature?
• A. Neutrophil
• B. Lymphocyte
• C. Monocyte
• D. Erythrocyte
• Answer: D
6. Which leukocyte is most abundant?
• A. Basophil
• B. Eosinophil
• C. Neutrophil
• D. Monocyte
• Answer: C
7. Gas exchange occurs primarily in the:
• A. Bronchi
• B. Trachea
• C. Alveoli
• D. Larynx
• Answer: C
8. The primary muscle of inspiration is the:
• A. Rectus abdominis
• B. External oblique
• C. Diaphragm
• D. Internal intercostal
• Answer: C
9. The process of blood cell formation is called:
• A. Hemolysis
, • B. Hematopoiesis
• C. Hemostasis
• D. Hemoglobinization
• Answer: B
10. Erythropoietin (EPO) is primarily produced by which organ?
• A. Liver
• B. Bone marrow
• C. Kidneys
• D. Spleen
• Answer: C
11. A patient with iron deficiency anemia would most likely present
with which lab finding?
• A. Elevated MCV
• B. Low serum ferritin
• C. Elevated hemoglobin
• D. High vitamin B12
• Answer: B
12. Which leukocyte is primarily responsible for defense against
parasitic infections?
• A. Neutrophils
• B. Basophils
• C. Eosinophils
• D. Monocytes
• Answer: C
13. Which type of leukocyte releases histamine and is involved in
allergic responses?
• A. Neutrophils
• B. Basophils
• C. Eosinophils
• D. Lymphocytes
• Answer: B
, 14. Vitamin K is essential for synthesizing which clotting factor?
• A. Factor VIII
• B. Factor IX
• C. Factor II (prothrombin)
• D. Factor XI
• Answer: C
15. A patient with a platelet count of 50,000/mm³ is at increased
risk for:
• A. Excessive bleeding
• B. Excessive clotting
• C. Infection
• D. Anemia
• Answer: A
16. Which of the following is a key difference between plasma and
serum?
• A. Plasma contains clotting factors; serum does not
• B. Serum contains clotting factors; plasma does not
• C. Plasma is the fluid portion of whole blood; serum is the fluid
portion after clotting
• D. Both A and C
• Answer: D
17. Which of the following is NOT a formed element of blood?
• A. Erythrocytes
• B. Leukocytes
• C. Thrombocytes
• D. Plasma
• Answer: D
18. Which plasma protein is the most abundant and contributes to
osmotic pressure?
• A. Fibrinogen
• B. Globulins
Questions and Answers Covering
Cardiovascular, Respiratory,
Lymphatic, Endocrine, and
Reproductive Systems ||Guaranteed
Pass
1. Which laboratory safety item should always be worn when
handling biological specimens?
• A. Sandals
• B. Gloves
• C. Jewelry
• D. Loose clothing
• Answer: B
2. Which microscope objective provides the greatest magnification?
• A. 4×
• B. 10×
• C. 40×
• D. 100× (oil immersion)
• Answer: D
3. The sinoatrial (SA) node is known as the:
• A. Atrioventricular node
• B. Pacemaker of the heart
• C. Bundle of His
• D. Purkinje fibers
• Answer: B
4. Which ECG wave represents ventricular depolarization?
, • A. P wave
• B. T wave
• C. QRS complex
• D. U wave
• Answer: C
5. Which blood cell lacks a nucleus when mature?
• A. Neutrophil
• B. Lymphocyte
• C. Monocyte
• D. Erythrocyte
• Answer: D
6. Which leukocyte is most abundant?
• A. Basophil
• B. Eosinophil
• C. Neutrophil
• D. Monocyte
• Answer: C
7. Gas exchange occurs primarily in the:
• A. Bronchi
• B. Trachea
• C. Alveoli
• D. Larynx
• Answer: C
8. The primary muscle of inspiration is the:
• A. Rectus abdominis
• B. External oblique
• C. Diaphragm
• D. Internal intercostal
• Answer: C
9. The process of blood cell formation is called:
• A. Hemolysis
, • B. Hematopoiesis
• C. Hemostasis
• D. Hemoglobinization
• Answer: B
10. Erythropoietin (EPO) is primarily produced by which organ?
• A. Liver
• B. Bone marrow
• C. Kidneys
• D. Spleen
• Answer: C
11. A patient with iron deficiency anemia would most likely present
with which lab finding?
• A. Elevated MCV
• B. Low serum ferritin
• C. Elevated hemoglobin
• D. High vitamin B12
• Answer: B
12. Which leukocyte is primarily responsible for defense against
parasitic infections?
• A. Neutrophils
• B. Basophils
• C. Eosinophils
• D. Monocytes
• Answer: C
13. Which type of leukocyte releases histamine and is involved in
allergic responses?
• A. Neutrophils
• B. Basophils
• C. Eosinophils
• D. Lymphocytes
• Answer: B
, 14. Vitamin K is essential for synthesizing which clotting factor?
• A. Factor VIII
• B. Factor IX
• C. Factor II (prothrombin)
• D. Factor XI
• Answer: C
15. A patient with a platelet count of 50,000/mm³ is at increased
risk for:
• A. Excessive bleeding
• B. Excessive clotting
• C. Infection
• D. Anemia
• Answer: A
16. Which of the following is a key difference between plasma and
serum?
• A. Plasma contains clotting factors; serum does not
• B. Serum contains clotting factors; plasma does not
• C. Plasma is the fluid portion of whole blood; serum is the fluid
portion after clotting
• D. Both A and C
• Answer: D
17. Which of the following is NOT a formed element of blood?
• A. Erythrocytes
• B. Leukocytes
• C. Thrombocytes
• D. Plasma
• Answer: D
18. Which plasma protein is the most abundant and contributes to
osmotic pressure?
• A. Fibrinogen
• B. Globulins
