Stevie D Posted December 16, 2009 Share Posted December 16, 2009 This is my first post here, so hello everyone. Making my foray into the wonderful world of science via an Access course (read A-level for mature students) in Marine and Environmental Science. See you at the lab in a few years' time. Anyway, onto the question. Working away on a biochemistry module at the moment (RH5/3/WW/003). Trying to rationalise to myself the formation of sucrose from glucose and fructose, as you may have determined from the thread title. I found this website: http://dl.clackamas.edu/ch106-07/sucrose.htm What I don't understand is their explantion of how b-D-fructose in standard orientation, shown here: ...gets flipped to b-D-fructose in inverted orientation: Are these two separate isomers? I've tried mentally rotating the first molecule in all three dimensions but still can't find a way to do it so that it ends up looking like the second one. I'd appreciate an explanation by more learned people. Cheers, Steve Link to comment Share on other sites More sharing options...
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