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Which comoponent of blood fights against germs that enter human body?

Which comoponent of blood fights against germs that enter human body? Correct Answer White blood cells

The correct answer is White blood cells.

  • WBCs fight against the germs that enter the human body.
  • Also known as leukocytes are a part of the immune system of our body.
  • These are produced in Bone Marrow and have an average lifetime of 3-4 days.
  • WBCs produces antibodies and ingest foreign material to fight infection.
  • These are of three types lymphocytes, granulocytes, and monocytes.
    1. Lymphocytes: These are further classified as T and B cells.
      • T cells recognize the infected cells.
      • B cells secrete antibodies.
    2. Granulocytes: These help the body to get rid of large pathogens like protozoa. Granulocytes are further divided into neutrophils, eosinophils, and basophils.
    3. Monocytes: These are also known as Scavenger cells. Destroys the pathogens at the site of infection and clears debris.
Component of Blood Characteristics
RBC
  • Also known as Erythrocytes.
  • Produced in: Spleen, Liver and Bone Marrow.
  • Average lifetime: 120 days.
  • It contains hemoglobin that carries oxygen to all parts of the body.
  • Carry carbon dioxide to the lungs.
Platelets
  • Also known as Thrombocytes.
  • Produced in: Bone marrow.
  • Average lifetime: 3-7 days.
  • ​Help in blood clotting.
Hemoglobin
  • It is a metalloprotein present in RBCs.
  • Helps in the transport of oxygen and Carbon dioxide.

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