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A LITTLE SOMETHING WORTH KNOWING

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ScienceOne small ahaBiology concept

Organisms without a nucleus

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Your new ahaProkaryotes

Prokaryotic cells lack a membrane-bound nucleus. Source: Prokaryotes ↗

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More from Biology Basics

A few more worth knowing.

  1. 09Movement of water across a selective membraneRECALL
    Osmosis

    Water moves down its water-potential gradient

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  2. 10This selective boundary controls what enters and leaves a cell.RECALL
    Cell membrane

    It is selectively permeable

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  3. 11This material fills a cell outside its nucleus and includes cytosol and organelles.RECALL
    Cytoplasm

    Many reactions occur there

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