A solution in which more solute can be dissolved.
They can be open chain "acyclic/aliphatic" or closed chain "ring/cyclic" (carbon chains). Openhain is again of different types, saturated ie.only single bonds or unsturated ie.double or thriple bonds. Cyclic hydrocarbons can be monocyclic or polycyclic
Lipids that are saturated have two hydrogen atoms attatched to all carbon atoms Lipids that are unsaturated have one or more carbon atoms double bonded, creating fewer hydrogen atoms attatched to the carbon backbone