BIOL 252 Human Anatomy & Physiology II with Lab Module 2 Exam Review
| 75 Practice Questions with Answers | Portage Learning LockDown
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INTRO
BIOL 252 Human Anatomy & Physiology II with Lab Module 2 Exam with this
comprehensive 75-question practice exam featuring detailed answers and explanations. Covers
blood composition, hematopoiesis, blood typing, hemostasis, immunity, the lymphatic system,
cardiovascular anatomy, ECG interpretation, blood pressure, and other essential Portage
Learning Module 2 topics. Ideal for LockDown Browser exam preparation and final exam
review.
Module 2 Cardiovascular System: The Heart.
Question 1
,2. Which protein within red blood cells directly binds oxygen molecules during gas transport
throughout the body?
A. Albumin
B. Fibrinogen
C. Globulin
D. Hemoglobin
Answer: D. Hemoglobin
Hemoglobin contains iron-rich heme groups that reversibly bind oxygen, allowing efficient transport
between the lungs and body tissues.
3. Which blood cell type functions primarily to defend the body against bacteria, viruses, fungi, and
other pathogens?
A. Erythrocytes
B. Platelets
C. Leukocytes
D. Plasma cells
Answer: C. Leukocytes
Leukocytes, or white blood cells, recognize and eliminate infectious organisms while supporting both
innate and adaptive immune responses.
4. Which blood component is primarily responsible for initiating blood clot formation after an injury
damages a blood vessel?
A. Plasma
B. Erythrocytes
C. Platelets
D. Neutrophils
Answer: C. Platelets
Platelets adhere to damaged vessels, form a temporary plug, and release chemicals that promote
coagulation and tissue repair.
, QUESTION 5
6. Which plasma protein serves as the precursor that is converted into fibrin during the blood-clotting
process?
A. Albumin
B. Globulin
C. Fibrinogen
D. Hemoglobin
Answer: C. Fibrinogen
Fibrinogen is converted into fibrin strands by thrombin, forming the structural framework of a stable
blood clot.
7. Which type of leukocyte is the most abundant in circulating blood and is the first to respond to
bacterial infections?
A. Basophils
B. Eosinophils
| 75 Practice Questions with Answers | Portage Learning LockDown
Browser Study Guide
INTRO
BIOL 252 Human Anatomy & Physiology II with Lab Module 2 Exam with this
comprehensive 75-question practice exam featuring detailed answers and explanations. Covers
blood composition, hematopoiesis, blood typing, hemostasis, immunity, the lymphatic system,
cardiovascular anatomy, ECG interpretation, blood pressure, and other essential Portage
Learning Module 2 topics. Ideal for LockDown Browser exam preparation and final exam
review.
Module 2 Cardiovascular System: The Heart.
Question 1
,2. Which protein within red blood cells directly binds oxygen molecules during gas transport
throughout the body?
A. Albumin
B. Fibrinogen
C. Globulin
D. Hemoglobin
Answer: D. Hemoglobin
Hemoglobin contains iron-rich heme groups that reversibly bind oxygen, allowing efficient transport
between the lungs and body tissues.
3. Which blood cell type functions primarily to defend the body against bacteria, viruses, fungi, and
other pathogens?
A. Erythrocytes
B. Platelets
C. Leukocytes
D. Plasma cells
Answer: C. Leukocytes
Leukocytes, or white blood cells, recognize and eliminate infectious organisms while supporting both
innate and adaptive immune responses.
4. Which blood component is primarily responsible for initiating blood clot formation after an injury
damages a blood vessel?
A. Plasma
B. Erythrocytes
C. Platelets
D. Neutrophils
Answer: C. Platelets
Platelets adhere to damaged vessels, form a temporary plug, and release chemicals that promote
coagulation and tissue repair.
, QUESTION 5
6. Which plasma protein serves as the precursor that is converted into fibrin during the blood-clotting
process?
A. Albumin
B. Globulin
C. Fibrinogen
D. Hemoglobin
Answer: C. Fibrinogen
Fibrinogen is converted into fibrin strands by thrombin, forming the structural framework of a stable
blood clot.
7. Which type of leukocyte is the most abundant in circulating blood and is the first to respond to
bacterial infections?
A. Basophils
B. Eosinophils
