When we first learn about cells in grade
school, we’re told to imagine them as “blobs.” And indeed, some cells
really are blob-shaped, perhaps most famously the amoebas that ooze
across the bottom of a pond engulfing smaller organisms. Most of the
tissue culture cells that serve as workhorses for cell biology research,
such as HeLa cells, are also pretty bloblike. But if we stop looking at
cells grown in a dish and start examining those found inside the human
body, we are immediately struck by the wide range of beautiful and
intricate shapes. [
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