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Human Blood Everyday Science One Liner MCQs

Human Blood Everyday Science One Liner MCQs


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

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