I'm trying to solve a question in a biochemistry quiz, which is asking for classifying a set of lipidic derivatives, by increasing polarity. Unfortunately, we didn't cover the classification of different liposoluble molecules by polarity in Biochemistry class. I find myself buried in details every time I use google seeking a good explanation. So:
How can we determine either if one molecule is more/less polar than other ?
For example, classifying Cholesterol, Triglyceride, Phosphatidylcholine, Phosphatidylserine, by increasing polarity.
PS : I'm not searching for the answer of that example too. I just need the exact method for determining how strong a polar fat molecule is. I'm sorry for my bad english.