Question

An oganic compound contains carbon, hydrogen, oxygen, and nitrogen. Could it b a fat or nucleic acid?

Answer 1

A nucleic acid would also contain a phosphate of some sort. Technically speaking though, it can't be a fat because fats (that I'm familiar with, at least) would not contain nitrogen. If you're saying that this particular compound ONLY contains those elements then I'd lean toward fat. If those are just some of the elements comprising it then I'd say it's a nucleic acid.