Which one of the following biomolecules is not present in the acid soluble fraction of living tissue?

Chemical analysis of a living tissue done by acid hydrolysis yields two fractions. One is the filtrate - the acid soluble pool and the other one is the retenate - the acid insoluble pool.

Biomolecules found in acid soluble pools with a molecular weight ranging from 18 to 800 Daltons are called bio-micromolecules. Examples are amino acids, nucleotides, sugars etc.

Biomolecules found in acid insoluble pool with molecular weights above 800 Daltons are called bio-macromolecules. Examples: Nucleic acids, proteins, polysaccharides etc.