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Unformatted text preview: formed; however, weak chemical forces or non-covalent bonds are the ones relevant to biochemical processes. Hydrogen bonds, van der Waals forces, ionic interactions, and hydrophobic interactions are all part of the non-covalent bond. These types of bonds are not strong enough to hold free atoms together, since the forces only range from 4 to 30 kJ/mol. Van der Waals forces results from a close interaction of tightly packed atoms or molecules with induced electrical interactions. Hydrogen bonds form between hydrogen atoms covalently bonded to electronegative atoms. It is very directional and specific in that it requires a complementary donor and acceptor. Ionic interactions refer to the attraction of oppositely charged polar functions, and can impart a high degree of structural specificity. Hydrophobic interactions are the result of water’s tendency to exclude non-polar groups and try to interact with one another....
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This note was uploaded on 01/25/2009 for the course BIOL 501 taught by Professor Garrett during the Spring '09 term at UVA.
- Spring '09