Everyday Science - Human Blood

Read Everyday Science - Facts about Human Blood for PPSC, SPSC, BPSC, KPPSC, NTS, PTS, OTS and other quiz competitions.

Everyday Science - The candidates are expected to have basic knowledge of Biology, Physics, and Chemistry. Scientific terms, Inventions, Discoveries, Human body, celestial bodies and environmental issues/problems. In general the candidates could be tested on knowledge of everyday observation and experience of things and phenomenon in the context of their scientific explanations.
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    • Everyday Science - Human Blood

      • Read the Facts about Human Blood and enhance your Everyday Science Knowledge.
  1. Universal donor group is O group
  2. Total volume of blood in human body is 5 liters. (4.7-5 liters)
  3. Life span of red blood cells is 120 days
  4. Life of RBC is 115 days.
  5. The total quantity of blood in a human body is 7-8 liter.
  6. 80 % water is found in pure blood
  7. The pH of normal human body is Arteries 7.4
  8. 60% of blood plasma consists of protein.
  9. Which one of the following substances is obtained by the fractionation of human blood? Gamma globulin
  10. In the human circulatory system blood returns to the heart from the lungs through Pulmonary Veins.
  11. First blood transfusion carried out in London
  12. pH value of water is 7, blood is 7.4 and urine is 5.5-6.5
  13. when iron is less in body the quantity of RBC decreases
  14. Leococytosis is the increase in number of white blood cells.
  15. it takes 30 seconds to blood for a complete circulation in human body
  16. Blood travels 1000 times through the whole body
  17. Hemoglobin is chromo-protein
  18. In lymph main cells are lymphocytes
  19. Blood has 83% of water
  20. Blood has 60% plasma, 40% corpuscles
  21. During sleep a man’s blood pressure fluctuates.
  22. Fat is a Lipid
  23. Human blood is 6 times thicker than water
  24. Heart pumps five liters of blood in 1 minute.
  25. Antigen is a substance that destroys harmful bacteria
  26. Blood typing is the way of determine the blood group.
  27. Platelets help to seal cuts in the skin.
  28. Almost half of the blood in a body is made up of red blood cells.
  29. White cells are about one for every 500 red cells.
  30. A blood donor gives about 500 ml of blood.
  31. RBC and WBC is bloods are counted by Hemocytometer.
  32. Of the blood groups A, B, AB and O, which one is transfused into a person whose blood group is A? Group A and O
  33. Your body contains eight pints of blood.
  34. Kari Landsteiner discovered the blood groups of man.
  35. Prothrombin which helps in clotting of blood is released by Blood platelets.
  36. The main function of white blood cells in the body is to protect the body against diseases.
  37. In which liquid component do the blood cells move about? Plasma
  38. Blood can be classified into how many main types of groups? Four
  39. The fluid portion of blood is known as the plasma.
  40. Blood contains 91 to 92% waster.
  41. Blood contains proteins like Serum Albumin, Serum Globulin, Prothrombin and Fibrinogen.
  42. RBCs in venous blood have bigger size than in arterial blood.
  43. RBCs due to their Hb content act as O2 carrier.
  44. RBCs are also known as Erythrocytes.
  45. WBCs are known as Leucocytes and act as police force of the body.
  46. WBCs are larger in size as compared to RBCs.
  47. Life span of WBCs is a few days to a few weeks.
  48. Platelets have no nucleus.
  49. Platelets are formed in red bone marrow.
  50. Life span of platelets varies from 4 to 10 days.
  51. Platelets are very rich in catecholamine.
  52. Blood grouping is based on the presence of blood group antigen (agglutinates) on RBCs which are inherited.
  53. O group comprises of 47% of population while A with 41% is second.
  54. Hemoglobin is a conjugated protein composed of heme and globulin.
  55. Quantity of hemoglobin is 16 gms/100 ml of blood in Males and 14 gms/100 ml of blood in females.
  56. Hemoglobin is basically from acetic acid and glycine.
  57. Platelets are essential for blood clotting.


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Everyday Science - Human Blood
Read Everyday Science - Facts about Human Blood for PPSC, SPSC, BPSC, KPPSC, NTS, PTS, OTS and other quiz competitions.
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