Biology 3rd Edition by Peter Russell, Paul Hertz, Beverly McMillan

Exercise 2

Lipoproteins are relatively large, spherical clumps of protein and lipid molecules that circulate in the blood of mammals.They are like suitcases that move cholesterol, fatty acid remnants, triglycerides, and phospholipids from one place to another in the body.Given what you know about the insolubility of lipids in water, which of the three kinds of lipids would you predict to be on the outside of a lipoprotein clump, bathed in the fluid portion of blood?