Question

complete the table to compare the structures of a lipid and a carbohydrate.

	lipid	carbohydrate
may contain three fatty acid molecules and one glycerol molecule
may have long chains of glucose arranged in parallel rows

Explanation:

1. Phospholipids (a type of lipid) have a hydrophilic head and hydrophobic tails. Carbohydrates do not have this structure.
2. Triglycerides (a lipid) consist of three fatty - acid molecules and one glycerol molecule. Carbohydrates have a different molecular composition.
3. Some carbohydrates like cellulose have long chains of glucose arranged in parallel rows. Lipids do not have this characteristic structure.

Answer:

	Lipid	Carbohydrate
May contain three fatty acid molecules and one glycerol molecule	Yes	No
May have long chains of glucose arranged in parallel rows	No	Yes