Suppose you are a cell??
BUONOR at JEFLIN.TJU.EDU
Wed Mar 29 09:11:26 EST 1995
On Wed, 29 Mar 1995, Giovanni Maga wrote:
> In article <Pine.184.108.40.206-VMS-7.9503230936.A578594-0100000 at JEFLIN.TJU.EDU>,
> BUONOR at JEFLIN.TJU.EDU (Russell Buonor/Anatomy) wrote:
> > > >MDbones1 at ix.netcom.com (Dee Bones) wrote:
> > > >>
> > > >> Suppose that you are a cell with a complete & fully functional set of
> > >
> > > >> organelles...
> > > >> Now, for whatever reason you must sacrifice one of those organelles
> > > yet
> > > >> remain alive.
> > > >> Which cellular organelle would you give up and why? What are the
> > > >> consequences???
> > > >>
> > > >> Thanks in advance to all...............DeeBones
> > > >
> > Let those mitochondria go, ferment and survive at a slower more relaxed pace!
> > Russ Buono consumer of wine and beer!!
> This idea of mitochondria to go has been forwarded by many answers to this
> question. I am not sure it can be a general argument that they can leave
> without problems for the cell. For sure, the cell usually do not have to
> choose (and if I were a cell I wouldn't choose as well). Loss of some
> organelles is just the result of evolution, i.e. selection for some
> variants (which arise spontaneously and randomly) which have more fitness
> for a particular enviroment. Change env. and you will change the kind of
> mutation selected. Thus, for some cell is good not to have mitochondria
> (BTW, in yeast you *do not* loose the chromosomal genes for mitochondrial
> proteins) for other ones not. Someone else cited flagellated protozoa (such
> as Trichonympha, Barbulanympha, Pyrsonympha) that live in the hindgut of
> lower termites and the wood-feeding roach, Cryptocercus. It is clear that
> this is a special case of adaptation to a particular enviroment (but if I
> were a cell and still keeping my common sense I would not like to live
> inside a termite) but it cannot be general.
> maga at vetbio.unizh.ch
Hey how about the human lens fiber cells. After differentiation they
lose all their organells, nucleus, mitos, all of them. Then they stay
stable and transparent for 60, 70 , or even 80 years.
Russ Buono, still consuming beer and wine!
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