Answer the following question given this paragraph: 

high proportion of amino acids in the protein have nonpolar side chains. The term hydrophobic interaction is often misused as a synonym for dispersion forces. Hydrophobic interactions arise because water molecules engage in hydrogen bonding with other water molecules (or groups in proteins capable of hydrogen bonding). Saylor URL: http://www. saylor. org/books.


Q: Hydrophobic interactions arise because water molecules engage in what type of bonding with other water molecules?

 Choices:

- aquatic bonding

- oxygen bonding

- helium bonding

- hydrogen bonding

A:
hydrogen bonding
