• Question: what is the smallest human cell?

    Asked by Hayden on 14 Jan 2022.
    • Photo: Danielle Nader

      Danielle Nader answered on 14 Jan 2022:

      I would imagine it is one of the neuron cells in the brain! 🧠

    • Photo: Prabs Dehal

      Prabs Dehal answered on 14 Jan 2022:

      Human sperm are very, very small. But I don’t know if they are the smallest cell.
      Some fruit fly sperm cells are very, very long (although the cell is still small). More than 5cm when the tail of the sperm is uncoiled!

    • Photo: Samuel Ellis

      Samuel Ellis answered on 14 Jan 2022:

      Yes the cell-part of sperm is very small, although their tails make them a little longer. Red blood cells are also one of the smallest, and do not have much inside including no cell nucleus so that they can be packed full for oxygen transport

    • Photo: Jonny Coates

      Jonny Coates answered on 21 Jan 2022:

      I think sperm cells are slightly smaller than red blood cells (which are around 5 microns). The largest I think is the ovum(?)

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