Home » Languages » English (Sr. Secondary) » English Essay, Paragraph, Speech on “Blood Types” for Kids and Students for Class 8, 9, 10, Class 12 and Graduation Examination

English Essay, Paragraph, Speech on “Blood Types” for Kids and Students for Class 8, 9, 10, Class 12 and Graduation Examination

Blood Types

The four blood types are known as A, B, AB, and 0. Blood type A contains red blood cells that have a substance A on their surface. This type of blood also contains an antibody directed against substance B, found on the red cells of persons with blood type B. Type B blood contains the reverse combination. Serum of blood type AB contains neither antibody, but red cells in this type of blood contain both A and B substances. In type 0 blood, neither substance is present on the red cells, but the individual is capable of forming antibodies directed against red cells containing substance A or B. If blood type A is transfused into a person with B type blood, anti-A antibodies in the recipient will destroy the transfused A red cells. Because 0 type blood has neither substance on its red cells, it can be given successfully to almost any person. Persons with blood. type AB have no antibodies and can receive any of the four types of blood; thus blood types 0 and AB are called universal donors and universal recipients, respectively. Other hereditary blood-group systems have subsequently been discovered. The hereditary blood constituent called Rh factor.

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