Compare and contrast triglycerides

Compare and contrast triglycerides, phospholipids and steroids. List all that apply, or none.

a. Which trends to spontaneously form a bilayer when placed in water?

b. Which consists primarily of rings, rather than long hydrocarbon chains?

c. Which is not typically found in membranes?

d. Which contains glycerol as component?

e. Which type of molecule is an oil?