What are the chemical substances that compose the plasma membrane? - Cuntorio

The main constituents of the plasma membrane are phospholipids, proteins and carbohydrates.
The phospholipds, amphipathic molecules, are regularly organized in the
membrane according to their polarity: two layers of phospholipids form
the lipid bilayer with the polar part of the phospholipids pointing to
the exterior of the layer and the non-polar phospholipid chains in the
interior.