erythrocytes transport oxygen and serve Erythrocytes transpo

Erythrocytes transport oxygen and serve to A) defend the body against pathogens B) initiate blood clotting. C) regulate erythropoiesis. D) transport nutrients. E) transport carbon dioxide. The lifetime of an individual red blood cell is approximately A) 4 hours B) 4 days C) 4 weeks D) 30 days E) 4 months When platelets degranulate, they release____, which aids in hemostasis. A) fibrin B) thrombin C) serotonin D) vitamin K E) heparin Which of the following is not one of the formed elements of blood? A) erythrocytes B) platelets C) antibodies D) eosinophils E) lymphocytes Any form of anemia that results from an excessive rate of erythrocyte destruction is classified as A) pernicious anemia B) malicious anemia C) hemorrhagic anemia D) hemolytic anemia E) hypoplastic anemia Which of these cells lack a nucleus? A) a monocyte B) a lymphocyte C) a basophil D) an eosinophil E) an erythrocyte A blood clot that breaks free and travels in the blood stream is called A) an infarction B) a thrombosis C) an embolism D) ischemia E) hemolysis A deficiency of circulating leukocytes is called A) leukocytosis B) leukemia C) polycythemia D) leukopenia E) oligoleukosis Most pro-coagulants are proteins produced by A) The spleen B) the bone marrow C) the liver D) The kidneys E) None of these If a rhesus negative mother has a second child with rhesus positive blood, then A) The mother should be transfused B) The mother will begin to make rhesus positive cells C) Anti-rhesus antibodies may attack fetal cells D) Rhogam must be given to the fetus E) There will be no reason for concern

Solution

1. answer : (E)

Explanation : Erythocytes involved in internal respiration of exchanges of gases.

2. answer : ( E) 4 months

Explanation: life span of RBC is 120 days , it is convert into months we get 4months.

3 answer : (C) serotonin

4. answer: ( C) antibodies

Explanation : B-cells produces memory cell and plasma cells so plasma cells produces antibodies, it not element in blood.

5. answer: ( D ) hemolytic Anemia

Explanation: Anemia that result in excessive destruction of erthyocytes is classified as Hemolytic Anemia

6. answer: (E) Erythocytes

Explanation: Erythocytes have no genetic material

7. answer : ( C ) an embolism

embolism is may be clot from a vein

8. answer : (D) Leukopenia

9. answer : (C) Liver

10. answer : (C) Anti rhesus antibodies may attack fetal cells