Proteins are chains of peptides (primary structure) held together by covalent bonds that are hard to break. The secondary and tertiary (3D) structure is held together with non-covalent bonds that break and form at room temperature. The structure is held together in an equilibrium between folded and unfolded structures which favours the folded structure under … Read more

As a general definition, quantitative is numbers e.g. there was a two times increase in blah. Qualitative is non numeric e.g. there was an increase in blah.