KERALA PSC / CDPO / BIOLOGY / BLOOD GROUPS / NOTES / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY

 

KERALA PSC / CDPO / BIOLOGY / BLOOD GROUPS / NOTES / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY

KERALA PSC / CDPO / BIOLOGY / BLOOD GROUPS / NOTES / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY

·      Blood groups A, B, AB, O were discovered by Karl Landsteiner

·      A person having blood type B could safely donate blood to persons with blood type B and AB

·      O blood group can be given to persons of any other group. Therefore, O group is called universal donor

·      A person with group AB can receive any other group. So AB is called universal recipient

·      ‘A’ blood group is most common among the Europeans, while ‘B’ and ‘O’ are common among the Asians and the American Indians, respectively.

·      Erythroblastosis foetalis – caused by the Rh blood group

·      Land Steiner and Weiner first found the Rh factor in Rhesus monkey

·      Normal count level of RBC in Blood – 5 million/ccg Blood

·      Normal count level of WBC in Blood – 5000 to 9000 ccg Blood

·      Normal count level of platelets in Blood – 250000 to 3 lakhs

·      Life span of platelets – 7 days

·   The instrument used to measure the blood pressure in Human body: Sphygmomanometer

·      The only one vein in human body which carries pure blood is pulmonary vein

·      Antigen is a substance which stimulates formation of antibody

·      When the right ventricle in the human heart contracts, the blood moves to pulmonary artery.

KERALA PSC / CDPO / BIOLOGY / BLOOD GROUPS / NOTES / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA PSC PRELIMINARY