But, organic chemistry: enzymes and coenzymes, factors and cofactors, metabolic stuff, little capital letters connected by fine lines in various crystal-type patterns. Words that end in "-ine" of which there are a lot in organic chemistry. If I could just sort out that stuff, if I could just understand such things as:
"Once SAM donates a methyl group it becomes S-adenosyl homocysteine, which is metabolized to homocysteine. Homocysteine can be converted to methionine in a reaction that requires methyl tetrahydrofolate (THF) and a vitamin B12-dependent enzyme. Alternately, betaine (a metabolite of choline) may be used as the methyl donor for the conversion of homocysteine to methionine."