General Knowledge Questions: Biology Questions and Answers (Part- 01)

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like— Vitamin K helps for blood clotting. Anemia produced due to lack of haemoglobin. Iron is present in hemoglobin. RBC carry oxyzen and remove Co2 from body.

General Knowledge Questions

 

Note: In part 01, get most important facts about blood and blood groups for all competitions. 

Blood (General Knowledge Questions)

  • In plasma all three blood cells floats.
  • Blood called as fluid connective tissue.
  • 7 % blood present in human body.
  • Heart is responsible for blood circulation.
  • 05-06 liter blood present in a human body.
  • In human body time taken for one time blood circulation is 23 seconds
  • Blood group was discovered by land steiner.
  • The normal blood pressure in human body is 120 / 80 mm.
  • When fibrinogen separated from plasma then remaining part is called Serum.
  • Plasma is liquid part of blood.
  • Plasma is 60 percentage of total blood.
  • Digested food and hormones are carried by plasma.
  • In human blood 40% blood cells are present.
  • Three types of blood cells are- Red Blood Cells (RBC), White Blood Cells (WBC), and Platelet.

Red Blood Cells (General Knowledge Questions)

  • A protein (Haemoglobin) present in Red Blood Cells.
  • Iron is present in hemoglobin.
  • Approximately 50,00000/ML3 Red Blood Cells present in the human body.
  • RBC (Red Blood Cells) produced in bone marrow in normal condition.
  • In fetus condition RBC created in lever.
  • The life period of RBC is 20-120 days.
  • RBC destroyed in liver.
  • The reason of red color of blood is hemoglobin.
  • Haeme is responsible for red color of RBC.
  • Iron is present in haeme which combines with oxyzen and produce red colour.
  • Anemia produce due to lack of haemoglobin.
  • In sleeping state RBC decrease upto 5 %.
  • In 4200 mitre hight RBC increases by 30 %.
  • RBC carry oxyzen and remove Co2 from body.

White blood cells (General Knowledge Questions)

  • White blood cells (WBC) or leucocyte fight against infection and provide immunity system.
  • The shape of White blood cell is like Ameba.
  • The life period of WBC is 01-04 days.
  • The ratio of RBC and WBC in human body is 600 : 1.

Platelets (Thrombocytes)

  • Platelets or thrombocytes play an important role in stopping blood bleeding.
  • Thrombocytes helps in blood clotting mechanism.
  • Vitamin K helps for blood clotting process.
  • Blood platlets produce in bone marrow.
  • The life period of platlets ic 03-05 days.
  • There are 1.5 to 4 lacs platelets present in the human body normally.
  • If someone suffering from dengue then dengue platelet count go down.
  • In dengue platelet counts goes down to as low as 20,000 to 40,000.

Blood Groups

  • Austrian scientist named Karl Landsteiner identified blood groups (A, B, O).
  • Scientist Karl Landsteiner achieved Nobel prize in 1930 for this classification of blood.
  • Blood group AB was identified by Scientist Adriano Sturli and Alfred von Decastello.
  • O type of blood group person can donate to all blood group person.
  • Karl Landsteiner and Alexander S. Wiener discovered Agglutinogen protein.
  • Agglutinogen protein present in Arhesus monkey. So, Landsteiner and Wiener gave a name that Rh factor.
  • People who have Rh factor are said to be Rh+ and people who don’t have Rh are said to be Rh-.
  • During the birth of a child, a child gets the Erythroblastosis Fetalis disease due to Rh antigen.  
  • When a father is Rh+ and mother is Rh-, then erythroblastosis fetalis disease takes place.
  • AB+ blood group is the universal recipient of blood,
  • In blood group A red blood cell contains “A” antigen and plasma contains antibody “b”.
  • Red blood cell in blood group B contains “B” antigen and plasma contains antibody “a”.
  • In blood group AB red blood cell contains both “A” & “B” antigen (but plasma does not contain antibody “a” and “b”).
  • In blood group O both antibody “a” and “b” present in plasma (but antigen “A” or “B” not present in the red blood cell).
  • O negative is the universal donor.
  • In besides to the A and B antigens, there is a third antigen called the Rh factor.
  • In general, Rh-negative blood is provided to Rh-negative patients, and Rh (+) blood or Rh (-) blood may be provided to Rh (+) patients.

 

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