I agree It is not impossible, but you need to be a very fast reader and a very fast learner If you have another option, do not try it. I had my Biochemisty interview as a part of my MS application, a few years ago. I was a bichemist, and I only had 5 days to do the refreshment for Biochemistry. I would score full in that interview style exam in Biochem but I just could make it 80%. It was enough to get me at the top of the list but I was so disapponted with myself because I missed a very, awfully simple question on that interview: The drawing of the L,D isomers of any amino acid I would like to draw. So, Be very cautious on easy stuff