NEETBotanyBiomolecules (B)
Why are lipids considered part of the macromolecular fraction?
Options
- ABecause they are not strictly macromolecules
- BBecause they are small molecular weight compounds
- CBecause they are found in the acid soluble pool
- DBecause they form structures like cell membranes and other membranes which get separated along with the acid i
Correct answer
D. Because they form structures like cell membranes and other membranes which get separated along with the acid i
Step-by-step solution
Lipids are indeed small molecular weight compounds and are present not only as such but also arranged into structures like cell membrane and other membranes. When we grind a tissue, we are disrupting the cell structure. Cell membrane and other membranes are broken into pieces, and form vesicles which are not water soluble. Therefore, these membrane fragments in the form of vesicles get separated along with the acid insoluble pool and hence in the macromolecular fraction . Lipids are not strictly macromolecules.