On 30 Jan 1995, Michael J Conboy wrote:
> Might it not be possible
> that biochemical reactions require free radicals to produce those
> intermediate steps?
Radicals are required for a number of biochemical reactions. Nucleic
acid biosynthesis depends upon free radicals. The immune system
chemical nitric oxide operates by free radical means. Simple metabolism
unavoidably produces radicals as a matter of course. If they were
eliminated, metabolism would cease. The problem is uncontrolled
radicals. Those are damaging.