• Question: What is the blood made of?

    Asked by simple to Mako on 22 Jun 2015.
    • Photo: Tat Ming Mako Ng

      Tat Ming Mako Ng answered on 22 Jun 2015:

      Blood is made up of four parts – plasma, red blood cells, white blood cells and platelets. Each part has a special job.

      Plasma is a yellow liquid. It helps give you energy and grow.

      Red blood cells carry oxygen to your cells.

      White blood cells clean the blood and fight germs. When a virus enters your body, white blood cells rush to destroy the virus so you get better.

      Platelets help your blood clot. When you cut yourself, a clot forms so the blood stops running. If your blood didn’t clot, you could bleed to death.

      Bone marrow — that goopy stuff inside your bones — makes the red blood cells, the white blood cells, and the platelets. Plasma is mostly water, which is absorbed from the intestines from what you drink and eat, with the liver supplying important proteins.

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