What is a micelle What is a vesicle How are these structures

What is a micelle? What is a vesicle? How are these structures the same? How are they different?

Solution

Micelle: it is unilayered lipid structure with hydrophillic tails & hydrophobic heads. Micelles are structures, in which core of the aggregate constituted with hydrophobic ends and outer ends such as head ends constituted with hydrophilic ends and finally establish hydrophilic and lipophillic equilibrium.  

Vesicle: it is crystalline or unilamellar composed of bilayer of lipids in its structure

These structures are similar only with respect to shape and both structures contain layers of lipids

They are different in their lipid layer composition