It's important to note that there are four major biomolecules, not three:

1. Carbohydrates: These are sugars and starches, which provide energy for the body. Examples include glucose, fructose, and cellulose.

2. Lipids: These are fats and oils, which store energy and provide insulation. Examples include triglycerides, cholesterol, and phospholipids.

3. Proteins: These are complex molecules that perform a wide variety of functions, including building tissues, transporting molecules, and catalyzing reactions. Examples include enzymes, antibodies, and hormones.

4. Nucleic Acids: These are complex molecules that store and transmit genetic information. Examples include DNA and RNA.