Re: Some help please....
- From: Ernest Major <{$to$}@meden.demon.co.uk>
- Date: Mon, 30 Apr 2007 18:13:05 +0100
In message <1177949362.725585.104320@xxxxxxxxxxxxxxxxxxxxxxxxxxx>, "cyberhacker665@xxxxxxxxx" <cyberhacker665@xxxxxxxxx> writes
Does anyone have any idea about what the basic chemicals were needed
for life to come into existance?
Am gona need that for school :D
Thanks in advance
Your question is ambiguous, as it doesn't specify which stage in the process it refers to.
25 elements are now essential to life, but the number may have been smaller when life first arose. Carbon, hydrogen, oxygen and nitrogen are clearly essential to life was we know it. I don't find the answer to the question as to which of the remaining 21 elements are necessary for life to come in existence obvious, but I'd guess that elements like cobalt, vanadium and selenium aren't.
Life without phosphorus would be biochemically very different from life as we know it, so I would suggest that phosphorus is essential for the origin of life as we know it.
The elements would presumably have been successively transformed (quite possibly with a low yield) into more complex compounds. The first stage would incorporate compounds such as methane (CH4), carbon dioxide (CO2), water (H20), cyanogen (CN), ammonia (NH3) and nitric oxide (NO2).
Immediately before the threshold of life, to the degree that a bright line can be drawn, more complex chemicals are required.
--
alias Ernest Major
.
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