Re: Smoked Salmon.

Steve Firth <%steve%@xxxxxxxxxxxx> writes
Oz wrote:
Charles Francis <charles@xxxxxxxxxxxxxxxx> writes
But at the same time as
the cells shrink it very likely opens up little gaps between the cells,
into which both the salt and the smoke may enter.

Animals have protein cell walls that are hugely flexible and elastic.
Plants might suffer though as they have cellulose cell walls which are
thicker and more rigid. I have a memory, though, that they have a cell
wall inside that one which can deflate although expansion is usually
fatal.

More the otherway round Oz, plants have rigid cellulose walls with a plasma
membrane inside, true.

OK, so true...

But this means that can resist pressure from within the
cell without damage.

but expansion is usually fatal?
Ie if they don't resist the pressure?

Hence a plant cell in a hypotonic solution will resist
damage and in a hypertonic solution the plasma membrane will shrivel from the
cell wall.

Animal cells have no rigid structure so in a hypertonic solution they will
shrivel and in a hypotonic solution they will swell and burst.

That depends how hypotonic it is....

--
Oz
This post is worth absolutely nothing and is probably fallacious.



.

Relevant Pages

  • Re: Whats smallest known "self-sufficient" genome
    ... concerning selection for senescence. ... you can avoid an unequal distribution of the aged cell wall. ... have cell walls that were constructed more recently. ...
    (sci.bio.evolution)
  • Re: First Cell Wall
    ... >> What is the current best theory for the formation of the first cell on ... > cell walls, and they constructed cell walls via natural selection - ... subject of amphiphilic molecules and how their evolution had to ...
    (sci.bio.evolution)
  • Re: First Cell Wall
    ... > What is the current best theory for the formation of the first cell on ... the correct theory is that the first cells were the product of ... cell walls, and they constructed cell walls via natural selection - ... > scientists are saying the first DNA strands were carried to the earth ...
    (sci.bio.evolution)
  • Re: Origin of Life Questions
    ... >>Cell walls are nothing special, ... Mitochondria are a very late development, ... Because they are a eukaryote feature, ...
    (talk.origins)
  • Re: Calculating number of days between two dates that fall between two other dates
    ... In cell A2 enter your start date 01/06/05 ... there are several policies that start at ... but for accounting purposes the ... quarters remain rigid to the cal. ...
    (microsoft.public.excel.misc)