Key term for Edexcel GCSE Biology, used in Cells and Microscopy.
A standard unit of measurement for cells and organelles, equal to one-thousandth of a millimetre (1 mm = 1,000 µm).
Micrometres (µm) appears in Edexcel GCSE Biology revision content for Key Concepts in Biology, especially Cells and Microscopy and Microscopy Investigation.
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