• word of the day

    cell membrane

    cell membrane - Dictionary definition and meaning for word cell membrane

    Definition
    (noun) a thin membrane (a double layer of lipids) enclosing the cytoplasm of a cell; proteins in the membrane control passage of ions (like sodium or potassium or calcium) in and out of the cell
    Example Sentence
    • all cells have a cell membrane

Word used in video below:
text: a plant cell has a membrane and a cell wall.
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