Originally posted by KellyJay
"Life cannot exists without water does not address how or where it started."
The full quote! It states that life cannot exist without water does not address
how or where it started, nothing about that statement says I'm saying life
cannot exist without water only that it doesn't address the point. You were the one
bringing up water not me my only poin ...[text shortened]... you do so out of your beliefs
about the beginning nothing more, certainly not logic.
Kelly
“...."Life cannot exists without water does not address how or where it started."
The full quote! ...”
yes, I know. I just cut out what I thought was the irrelevant bits.
“....It states that life cannot exist without water does not address
how or where it started, nothing about that statement says I'm saying life
cannot exist without water . ...”
fair enough 🙂 I just cannot handle your grammar. In my language, to me, saying “X cannot exist without Y....(rest of quote here)...” instead of using the “if...then” to indicate you are not stating “ X cannot exist without Y” as a fact ( i.e. instead of state it as “if X cannot exist without Y then....(rest of quote here)...” ) implies “ X cannot exist without Y” as a fact but now I will try and get used to this eccentricity in your grammar.
OK, so you never meant to say life cannot exists without water (in the semantic sense). So you don't believe life need water to exist?
But before we continue, lets start to talk about life needing water to
function (as opposed to
exist ) since I think this is what we really mean. I mean, there are lifeforms on Earth that can stay dehydrated in a dormant state for some time -but they cannot start to function (i.e. grow, reproduce, respond to stimuli etc) until if and when they are exposed to water (not to mention that they cannot come into existence in the first place without water! ).
No known life on Earth can function without water and there are some very good known reasons for that!
http://www.moleclues.org/forums/open-forum/why-does-life-need-water
“...Water is a unique solvent. In life, it provides the medium in which things happen - the optimal place for the chemical reactions of life to take place. Water is the perfect environment that keeps everything swimming happily - from the smallest molecules and all the way up to DNA and enzymes - so that they can interact with each other. In water, everything dissolves happily and rapidly.
You can think of a cell as a container of a chemical soup. In your body, you can find such specialised micro-environments where chemical reactions take place. In fact, your entire body is a tremendous array of chemical reactions. And in these reactions, water is what we call the solvent, an environment where all these chemicals can interact.
Thanks to water, animals can have blood, the solution that carries oxygen and nutrients to the body. The cells and tissues that receive those nutrients are also microscopic sacks of water.
Water molecules interact with each other and other molecules through what is called a hydrogen bond - a weak chemical interaction. The nature of that bond accounts for the behaviour of water, and its uniqueness...”
I should add that water is pretty unique in that it is the ONLY known solvent in nature that the essential building blocks of life (amino acids, RNA and DNA bases) are soluble in and which is liquid at an adequately high temperature to allow chemical reactions between proteins and their substrates etc. No other solvent that is known to exist in nature does this including liquid ammonia and liquid methane and pure hydrocarbons. Other known solvents that DO have these required properties (e.g. alcohol, glycerine, methyl glycol, ) either are never produced in nature or only produced in too a low concentrations or are always produced in solution in water within the required temperature range (and usually can only be created in water).
So, what is your counterargument to the above? I mean, given the above, how could life function without water?