Question

State the solubility properties of lipids and lipoproteins in polar (water and plasma) and non polar (organic chemicals) solvents.

Answer 1

Lipids are molecules containing hydrocarbons.

Examples

fats, oils, waxes, some vitamins etc.

Since they are non-polar, they will be soluble in non-polar solvents. And they won't be soluble in polar solvents.

Rule is like dissoves like.

Polar solvents dissoves polar molecule and non-polar solvents dissoves non-polar molecules.

Lipoprotein are aggregates of different molecules. They have hydrophilic groups of phospholipids direct outwards of the aggregation sphere and all non-polar larts are inside this sphere. Since surface of the sphere is hydrophilic- polar, it will be soluble in polar solvents and insoluble in non-polar solvents.