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Protein Folding

September 19, 2019

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Biochemistry Review

Directions: Press “Play” to put the water molecules in motion. Click “Cool” or “Heat” to raise or lower the temperature. Loading... Watch this video on Water and Polarity. Directions: Select various pairs of molecules from the drop-down menu. Pull on the star until the molecule pairs separate. Loading... Read more below on Hydrogen bonds, polar, and nonpolar molecules. Hydrogen Bonds When hydrogen bonds to an atom with high electronegativity (e.g., oxygen), an un-equal sharing of electrons occurs. This electron disparity creates a region of slight positive charge on the hydrogen atom and a region of slight negative charge on the more electronegative atom in which hydrogen is bonded. This separation of positive and negative charges is called an electric dipole and gives rise to a polar molecule. A hydrogen bond is a term used to describe an attraction that can occur between a polar molecule and the hydrogen atom that is bound to a highly electronegative atom. Hydrogen bo

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