Here are some examples of hydrophobic biomolecules:

* Lipids: Fats and oils are composed of long hydrocarbon chains, which are non-polar and thus repel water. This is why oil and water don't mix.

* Proteins: Some proteins have hydrophobic amino acids on their surface, making them less soluble in water. This is important for their function, as it allows them to interact with other non-polar molecules.

* Steroids: These molecules, like cholesterol, are also non-polar and hydrophobic.

Important Note: It's not entirely accurate to say a biomolecule "repels" water. It's more accurate to say that hydrophobic molecules are not attracted to water because they can't form hydrogen bonds with water molecules. This lack of attraction leads to the separation of water and hydrophobic molecules.