Please create an account to participate in the Slashdot moderation system

 



Forgot your password?
typodupeerror

Submission + - Why Are Cells The Size They Are? Gravity May Be A Factor (acs.org) 1

carmendrahl writes: Eukaryotic cells, which are defined by having a nucleus, rarely grow larger than 10 m in diameter. Scientists know a few reasons why this is so. A new study suggests another reason--gravity. Studying egg cells from the frog Xenopus laevis, which reach as big as 1 mm across and are common research tools, Princeton researchers Marina Feric and Clifford Brangwynne noticed that the insides of the eggs' nuclei settled to the bottom when they disabled a mesh made from the cytoskeleton protein actin. They think the frog eggs evolved the mesh to counteract gravity, which according to their calculations becomes significant if cells get bigger than 10 m in diameter.
This discussion was created for logged-in users only, but now has been archived. No new comments can be posted.

Why Are Cells The Size They Are? Gravity May Be A Factor

Comments Filter:
  • Might you mean "Cells rarely grow bigger than 10 microns in diameter" ?? There appears to be some missing/non-printing characters here

If you are smart enough to know that you're not smart enough to be an Engineer, then you're in Business.

Working...