BIO 204 Exam
1. What are the primary functions of blood?: Transport O2, CO2, nutrients, and wastes.
2. How does the body add oxygen to blood and remove carbon dioxide?: add O2
to blood and remove CO2 from blood.
3. What role do the digestive organs play in blood function?: Digestive organs add
nutrients to blood.
4. What is the function of the kidneys in relation to blood?: The kidneys remove wastes from
blood.
5. What is the typical volume of blood in an adult?: 4-6 liters (7%)
6. What percentage of extracellular fluid does blood constitute?: 20% of extracellular
fluid.
7. What is the normal pH range of blood?: 7.35 - 7.45
8. What is the average temperature of blood?: 38 degrees Celsius (100.4 degrees Fahrenheit).
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, 9. What are the two phases of blood composition?: Liquid phase (plasma, 55%) and red phase
(Hematocrit, 45%).
10. What is the primary component of the liquid phase of blood?: Plasma.
11. What are the main components of plasma?: 90% water and 10% dissolved substances (e.g.,
glucose, salts, amino acids, plasma proteins).
12. What are the main types of plasma proteins and their functions?: Albumins (60%,
maintain osmolarity), globulins (transport lipids and antibodies), and fibrinogen (clotting protein).
13. Where does hemopoiesis occur before and after birth?: Before birth: liver, spleen, and
thymus gland; After birth: bone marrow.
14. What are the two main types of blood cells?: Red blood cells (erythrocytes) and white blood
cells (leukocytes).
15. What is the lifespan of a red blood cell?: Approximately 120 days.
16. How is hemoglobin structured and what is its function?: four globin chains and four
heme molecules with iron atoms that bind O2.
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1. What are the primary functions of blood?: Transport O2, CO2, nutrients, and wastes.
2. How does the body add oxygen to blood and remove carbon dioxide?: add O2
to blood and remove CO2 from blood.
3. What role do the digestive organs play in blood function?: Digestive organs add
nutrients to blood.
4. What is the function of the kidneys in relation to blood?: The kidneys remove wastes from
blood.
5. What is the typical volume of blood in an adult?: 4-6 liters (7%)
6. What percentage of extracellular fluid does blood constitute?: 20% of extracellular
fluid.
7. What is the normal pH range of blood?: 7.35 - 7.45
8. What is the average temperature of blood?: 38 degrees Celsius (100.4 degrees Fahrenheit).
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, 9. What are the two phases of blood composition?: Liquid phase (plasma, 55%) and red phase
(Hematocrit, 45%).
10. What is the primary component of the liquid phase of blood?: Plasma.
11. What are the main components of plasma?: 90% water and 10% dissolved substances (e.g.,
glucose, salts, amino acids, plasma proteins).
12. What are the main types of plasma proteins and their functions?: Albumins (60%,
maintain osmolarity), globulins (transport lipids and antibodies), and fibrinogen (clotting protein).
13. Where does hemopoiesis occur before and after birth?: Before birth: liver, spleen, and
thymus gland; After birth: bone marrow.
14. What are the two main types of blood cells?: Red blood cells (erythrocytes) and white blood
cells (leukocytes).
15. What is the lifespan of a red blood cell?: Approximately 120 days.
16. How is hemoglobin structured and what is its function?: four globin chains and four
heme molecules with iron atoms that bind O2.
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