The molecules in the insoluble fraction with the exception of lipids are polymeric substances. Then why do lipids, whose molecular weights do not exceed 800 Da, come under acid insoluble fraction, i.e., macromolecular fraction? Lipids are indeed small molecular weight
Assertion (A): Lipids are classified as macromolecules despite their relatively low molecular weight. Reason (R): Lipids form membrane structures that make them appear in the acid-insoluble fraction.
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