Lipids are insoluble in water because lipid molecules are:
1. Hydrophilic
2. Hydrophobic
3. Neutral
4. Zwitter ions
Phospholipids are esters of glycerol with:
1. | Three carboxylic acid residues |
2. | Two carboxylic acid residues and one phosphate group |
3. | One carboxylic acid residue and two phosphate groups |
4. | Three phosphate groups |