In cuboidal or columnar cells or cells of any other shape the nucleus and the other organelles and inclusions remain suspended in the cytoplasm. Why doesn't gravity affect them ? Could this be because all organelles are of colloidal size ? Or is it the result of being held in position microfilaments and other cytoskeletal structures that facilitate cytoplasmic streaming ?

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    $\begingroup$ It's the cytoskeleton - cells are surprisingly full of it. $\endgroup$
    – MattDMo
    Jan 7 at 14:50
  • $\begingroup$ okay thanks....got it $\endgroup$ Jan 8 at 5:53