Question: what are the 2 main parts of a lipid?
Answer: Fats and oils. A fat molecule consists of two kinds of parts: a glycerol backbone and three fatty acid tails. ...  Saturated and unsaturated fatty acids. As shown in the example above, the three fatty acid tails of a triglyceride need not be identical to each other. ...  Waxes. ...  Phospholipids.