tag:blogger.com,1999:blog-34112832.post2752367941455581935..comments2023-11-05T09:37:36.840+01:00Comments on A View From Rural Wales: P is for 'Pricey'.Glyn Davieshttp://www.blogger.com/profile/10442114752573417252noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-34112832.post-25565140812363955752008-05-30T20:39:00.000+01:002008-05-30T20:39:00.000+01:00In fact it might surprise you to learn that the ur...In fact it might surprise you to learn that the urea molecule looks wonderful when displayed on a super-graphic workstation; two amide groups linked to a central carbonyl group enables urea to mix exceeding well with water because of urea’s ability to hydrogen bond and by virtue of its relative small dimensions able to pass through small pores/openings otherwise able to block larger molecules like sugar (at a given osmotic pressure, too much osmotic pressure and sugar molecules will be forced through too) – hence the structure and functionality of good working kidneys which sieve urea (and some electrolytes, but in a controlled way) out of our bodies. Just as well for us that ‘life’ (I would say God) has made it so that this particular product of protein breakdown (urea) can be flushed so easily from our bodies via the blood stream and then out into a toilet bowl or via a 'urine by-pass' back up system if you are on a space station in orbit permanent falling to planet Earth.Dr. Christopher Woodhttps://www.blogger.com/profile/09066490027824527304noreply@blogger.com