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chapter 47.2 study

47.2 flash cards

Explain the relationship between the following pairs of terms: leukocyte, phagocyte . Leukocytes help defend the body from disease. Phagocytes are a type of leukocyte that engulf invading microorganisms
Explain the relationship between the following pairs of terms: antigen, antibody An antigen is a protein or carbohydrate that causes the body to produce antibodies, which are defensive proteins
Explain the relationship between the following pairs of terms: erythrocyte, hemoglobin Erythrocytes, synthesize large amounts of hemoglobin, which carries oxygen
Explain the relationship between the following pairs of terms: platelet, fibrin Platelets and fibrin are involved with blood clotting
When oxygen is carried by the blood it is bonded to: A. platelets B. antibodies C. plasma D. hemoglobin D. hemoglobin
Phagocytes A. carry hemoglobin B. synthesize erythrocytes C. engulf microorganisms D. produce antibodies C. engulf microorganisms
Platelets: A. are formed in lymph nodes B. are involved with blood clotting C. produce hemoglobin D. are whole cells B. are involved with blood clotting
Mature red blood cells: A. live for several years B. are the largest cells in the blood C. promote clotting D. do not have a nucleus D. do not have a nucleus
If someone is recieving a blood transfusion, which of the following is most important to know? A. the number of erythrocytes in the donated blood B. if the father of the donated blood donor is Rh+ C. the donor's blood type C. the donor's blood type
How is oxygen transported in the blood? In the blood, oxygen is bonded to molecules of hemoglobin in red blood cells for transport
List two structural and two functional differences between erythrocytes and leukocytes Structural differences include: no nucleus in the RBC, but a nucleus in the WBC; one type of RBC, ;and a higher number of RBC in circulation,Functional differences include: RBCs transport gases,; a short life span for RBCs,
Explain why a person with type AB blood can donate blood only to a person with the same blood type . All other blood types contain anti-A or anti-B antibodies. A person with type AB blood will have RBCs with A and B antigens, and mixing anti-A or anti-B antibodies with type AB blood would be harmful
Describe the role of platelets in blood clotting Platelets congregate at a damaged site, sticking together and forming a small plug. Platelets release clotting factors, which begin a series of reactions to produce fibrin. Fibrin produces a net that traps other cells and forms a clot
CRITICAL THINKING: How might a lack of dietary iron affect the oxygen carrying capacity of blood? Because hemoglobin requires a molecule of iron to complete its formation, lack of dietary iron might impair the synthesis of hemoglobin. Hemoglobin carries oxygen; therefore, lack of hemoglobin could impair the oxygen carrying capacity of blood.
Explain why type O blood can be donated in a blood transfusion regardless of the recipient's blood type Type O blood does not contain antigens that would react with any antibodies that the recipient might have
Describe the antibody-antigen interactions that would occur if a person with Rh- person with type B blood recieved blood from an Rh+ person with type AB blood Antibodies to antigens A and Rh will cause agglutination, resulting in blocked vessels in the recipient’s body
Refer to Diagram 47-B: Answer numbers 1-8 1. A 2. B 3. A and B 4. None 5. A, AB 6. B, AB 7. AB 8. A, B, AB, O
Refer to Diagram 47- C: Answer numbers 1-7 1. medium 2. red bone marrow 3. fight disease 4. years 5. 7,000 6. blood clot 7. 7-11 days
How much percent of blood is liquid plasma? How much is solid? Solid= 45% Liquid= 55%
Created by: angelicaunpingco
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