BIO 253 EXAM 3 UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS
VERIFIED 2027 EDITION
1. Functions of blood
Transport it substances Regulation of temperature Gas exchange Regulate ph and other hormones
Protects blood loss through clotting
2. Blood components
45% formed elements 55% plasma erythrocytes, leukocytes, platelets, plasma
3. What do erythrocytes (RBC) do
Hemoglobin (protein) binds to RBC and carries O2
4. Leukocytes (wbc) function
Whole cells that protect against infection and foreign invaders.
5. Platelets (thrombocytes) function
Clotting and coagulation
6. Plasma function
Makes up blood volume and carries formed elements .
7. components of plasma
albumin, globulin, fibrinogen ( water, protein other solutions)
8. Albumin (plasma protein) functions
Maintain osmotic pressure
9. Globulins ( antibodies)
Essential for immunity mechanism bind to a foreign object
10. Fibrinogen ( plasma protein)
Role in clotting only when necessary
11. Difference between plasma and serum
Plasma has clotting factors . Liquid minus formed elements and contains fibrinogen. Serum is like plasma
does not contain fibrinogen but has all electrolytes, antibodies, antigens, hormines.
12. What is found in red bone marrow
Erythrocytes Leukocytes Platelets
13. Characteristics of rbc
Strange disc shake Oxygen binding Carries co2 to lungs Acts as buffers Lifespan 105 to 120 days Contains
carbonic anhydase
14. What is carbonic anhydase
Enzyne that combines with co2 form the waste and forms carbonic acid which dissolves easily in blood.
15. Function of rbc in 02 and co2 transport
A. Carries o2 to cell for cellular respiration B. Carries waste carbon dioxide ( most hydrated to bicarbonate
which is released into blood back to lungs.) cc. In the lungs it is reformed (rehydrated in rbc) into co2 and
exhaled
1
, 16. Production of rbc and regulation
Rbc produced in bone marrow Production is aka erythropoesis Controlled by the hormones erythropoietin
Epo is made is made in the kidney in response to decreased 02 delivery and increased levels of androgen
17. What happens when rbc break down
When dead they transport to the spleen Iron And hemoglobin break apart resulting in biliruben Biliruben
released in to the plasma and recirculated to the liver
18. What antigens does type a blood have and antibodies
Antigen a B antibodies
19. What antigens does type b blood have and antibodies
B antigens A antibodies
20. What antigens does type AB blood have and antibodies
Type AB antigens No antibodies
21. What antigens does type o blood have and antibodies
No antigens A and b antibodies
22. five leukocytes
neutrophils, lymphocytes, monocytes, eosinophils, basophils
23. neutrophils function: inflammatory response
Cellular defense 65% wbc
24. Eosinophil function
Cellular defense parasitre worms allergic reaction
25. Basophil function
release histamine and other mediators of inflammation; contain heparin, an anticoagulant
26. Lymphocytes functions are?
destroy cancer cells, present antigens to activate other cells in immune system, secrete antibodies, and
serve in immune memory
27. Monocytes funtion
Largest wbc mobile and highly phagocytic
28. Orgin and function of platelet
Homeostasis Major propertire: agglutination, adehesiveness and aggregation Starts in bone marrow
29. Process of hemostasis and clot dissolution
Vasoconstriction causes temp closure of vessel and lessens blood loss Platelets plug formation after
damage or injury Sticky platelets form plug Coagulation 3 step Fibrinolysis Plasim released by damaged
crlls to dissolve clot
30. Structure and function or pericardial sac
Double wall sac contained the heart and roots of great vessel 2 layers fibrous and serious Enclosed
pericardial cavity which contains pericardial cavity
2
VERIFIED 2027 EDITION
1. Functions of blood
Transport it substances Regulation of temperature Gas exchange Regulate ph and other hormones
Protects blood loss through clotting
2. Blood components
45% formed elements 55% plasma erythrocytes, leukocytes, platelets, plasma
3. What do erythrocytes (RBC) do
Hemoglobin (protein) binds to RBC and carries O2
4. Leukocytes (wbc) function
Whole cells that protect against infection and foreign invaders.
5. Platelets (thrombocytes) function
Clotting and coagulation
6. Plasma function
Makes up blood volume and carries formed elements .
7. components of plasma
albumin, globulin, fibrinogen ( water, protein other solutions)
8. Albumin (plasma protein) functions
Maintain osmotic pressure
9. Globulins ( antibodies)
Essential for immunity mechanism bind to a foreign object
10. Fibrinogen ( plasma protein)
Role in clotting only when necessary
11. Difference between plasma and serum
Plasma has clotting factors . Liquid minus formed elements and contains fibrinogen. Serum is like plasma
does not contain fibrinogen but has all electrolytes, antibodies, antigens, hormines.
12. What is found in red bone marrow
Erythrocytes Leukocytes Platelets
13. Characteristics of rbc
Strange disc shake Oxygen binding Carries co2 to lungs Acts as buffers Lifespan 105 to 120 days Contains
carbonic anhydase
14. What is carbonic anhydase
Enzyne that combines with co2 form the waste and forms carbonic acid which dissolves easily in blood.
15. Function of rbc in 02 and co2 transport
A. Carries o2 to cell for cellular respiration B. Carries waste carbon dioxide ( most hydrated to bicarbonate
which is released into blood back to lungs.) cc. In the lungs it is reformed (rehydrated in rbc) into co2 and
exhaled
1
, 16. Production of rbc and regulation
Rbc produced in bone marrow Production is aka erythropoesis Controlled by the hormones erythropoietin
Epo is made is made in the kidney in response to decreased 02 delivery and increased levels of androgen
17. What happens when rbc break down
When dead they transport to the spleen Iron And hemoglobin break apart resulting in biliruben Biliruben
released in to the plasma and recirculated to the liver
18. What antigens does type a blood have and antibodies
Antigen a B antibodies
19. What antigens does type b blood have and antibodies
B antigens A antibodies
20. What antigens does type AB blood have and antibodies
Type AB antigens No antibodies
21. What antigens does type o blood have and antibodies
No antigens A and b antibodies
22. five leukocytes
neutrophils, lymphocytes, monocytes, eosinophils, basophils
23. neutrophils function: inflammatory response
Cellular defense 65% wbc
24. Eosinophil function
Cellular defense parasitre worms allergic reaction
25. Basophil function
release histamine and other mediators of inflammation; contain heparin, an anticoagulant
26. Lymphocytes functions are?
destroy cancer cells, present antigens to activate other cells in immune system, secrete antibodies, and
serve in immune memory
27. Monocytes funtion
Largest wbc mobile and highly phagocytic
28. Orgin and function of platelet
Homeostasis Major propertire: agglutination, adehesiveness and aggregation Starts in bone marrow
29. Process of hemostasis and clot dissolution
Vasoconstriction causes temp closure of vessel and lessens blood loss Platelets plug formation after
damage or injury Sticky platelets form plug Coagulation 3 step Fibrinolysis Plasim released by damaged
crlls to dissolve clot
30. Structure and function or pericardial sac
Double wall sac contained the heart and roots of great vessel 2 layers fibrous and serious Enclosed
pericardial cavity which contains pericardial cavity
2
