·cell membranes · large biomolecule · many high energy bonds · nonpolar covalent bonds · includes waxes and steroids · consists mainly of carbon and hydrogen · more energy per gram than other biomolecules the biomolecule described is a) carbohydrate. b) lipid. c) monosaccharide. d) protein.

The answer is B. Lipids

Hope this helps

not sure if this what   you'r looking for would be percent composition

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides