• Question: how many cells are made in 1 year?

    Asked by vorn20 to Adam, Joanna, Louise S, Louise W, Marcus on 16 Nov 2012.
    • Photo: Marcus Wilson

      Marcus Wilson answered on 16 Nov 2012:

      erm a lot. just in one day 100 million red blood cells are remade. some organs need a lot of new cells, like
      the gut and blood, but others dont change over very often at all, like in the brain.

    • Photo: Joanna Giles

      Joanna Giles answered on 16 Nov 2012:

      Red blood cells are the most abundant in the body – as Marcus says 100 million or more are made a day!

      Our largest organ is the skin, and this also turns over a lot of cells in a year, a day and even a minute- 40,000 a minute! That is a lot – weighing 3.6Kg of skin cells lost in a year! Yuck!

      So, basically – millions and billions! too many to count I should think!

    • Photo: Louise Walkin

      Louise Walkin answered on 18 Nov 2012:

      Interesting question!! Far too many to count – I think the number would have a lot of zeros at the end! Just think of how many cells we have, and how many types there are. Then how many replicate each day and multiply that by 365. I don’t think I can even comprehend a number that big! 🙂

    • Photo: Adam Paige

      Adam Paige answered on 19 Nov 2012:

      All the cells in our bodies were made from a single fertilised egg in just nine months don’t forget.

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