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prokartotes

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prokartotes

Postby Avishek890 » Sun Sep 01, 2013 6:13 am

do prokaryotic cells have organelles???
by definition they have no membrane bound organelles but i think they dont have any at all. i think that the whole cell can be consisdered as a specialised organelle. endosymbiosis also suggests that chloroplast and mitochodria organelles in eukaryotes are actually prokaryotes. thus i do not think that prokaryotes have organelles. can anyone please support my suggestion or oppose it with evidence??
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Postby Cat » Sun Sep 01, 2013 2:05 pm

That depends on whether or not you consider ribosomes to be organelles.
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Postby JackBean » Tue Sep 03, 2013 9:47 am

also, they have some some membrane cavities (sorry, I don't remember the actual name) and the DNA is not that freely in the cytosol, but rather in something called nucleoid.
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.
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Re: prokartotes

Postby jonmoulton » Tue Sep 03, 2013 4:29 pm

There is also the thylakoid membrane of a cyanobacterium which might qualify, but whether or not to call that an organelle would likely ignite semantic argument.
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Postby adithya528 » Thu Sep 12, 2013 5:41 pm

you neglected about ribosomes flagella and cillia found in prokaryotes !
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