An alkaloid with the formula C₁H₁NO, was oxidized in acidified K₂Cr₂O, producing a ketonic derivative C10H₁3NO, this indicates the presence of: Select one: O a B-unsaturated ketone group Primary alcohol Secondary amine Secondary alcohol Ketone group

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Micelles and Biological Membrane

Micelles are the type of lipid molecules that organize themselves in spherical shape in aqueous solutions. The production of the micelle is a reply to the amphipathic behavior of fatty acids. It means that they consist of both hydrophobic regions and hydrophilic regions. In micelles, polar head groups (hydrophilic groups) produce an outer layer associated with water whereas nonpolar tails (hydrophobic groups) are organized in the interior.