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A LITTLE SOMETHING WORTH KNOWING

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ScienceOne small ahaBiology concept

Cells that defend against disease

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Your new ahaWhite blood cells

White blood cells include several kinds of immune cells. Source: White blood cells ↗

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More from Biology Basics

A few more worth knowing.

  1. 08Organisms without a nucleusRECALL
    Prokaryotes

    Bacteria and archaea are prokaryotic

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  2. 09Movement of water across a selective membraneRECALL
    Osmosis

    Water moves down its water-potential gradient

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  3. 10This selective boundary controls what enters and leaves a cell.RECALL
    Cell membrane

    It is selectively permeable

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