Which antibodies are present in the plasma of a person with type O blood? a. Ant

Question

Which antibodies are present in the plasma of a person with type O blood? a. Anti-A and anti-B b. anti-A c. anti-B d. none Which of the following reasons is the correct reason why you can die of carbon monoxide poisoning? a. Hemoglobin has a higher affinity for carbon monoxide than oxygen. b. There is a lack of oxygen in the air you are breathing. c. The carbon monoxide binds to oxygen which binds to hemoglobin and gets stuck on the Heme group of hemoglobin thus the oxygen cannot dissociate from hemoglobin to be released at d. Carbon monoxide binds to the globin portion of hemoglobin. e Carbon Monoxide blocks carbon dioxide from binding to hemoglobin thus causing carbon dioxide to remain in the tissues and this poisons your tissues. Which of the following is NOT a cause of an excessive bleeding disorder? a. vitamin K deficiency b. a defect in the blood clotting cascade c. A lack of fibrinogen c. A lack of fibrinogen d. Excess secretion of platelet-derived growth factor (PDGF) e. Thrombocytopenia, a condition of decreased circulating platelets

Explanation / Answer

1.Which antibodies are present in the plasma of a person with type O blood

Ans..(a)..Anti A and Anti B

Anti-A and Anti-B antibodies circulating in the serum of people with O blood types are actually antibodies against surface antigens of normal bacterial flora in the digestive system which are cross-reacting with A and B antigens on RBCs,we already have Anti-A and Anti-B antibodies circulating without previous sensitization, O blood group has both the antibodies "anti-A" and "anti-B". This statement means that the immune system of the person who has O blood group, will produce anti-A and anti-B antibodies.

3.(Q)..which of the following is not a causecof an excessive bleeding disorder.

Ans..(d)..Execess secreation of  platelet-derived growth factor (PDGF).

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