BIOC 299 Chapter Notes - Chapter 1-4: Brownian Motion, Chemical Polarity, Botany

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In the context of the cell, water is the most common medium for thermal noise of. This interaction is called a hydrogen bond: hydrogen bonds are not unique to water molecules. Liquid water has a partly ordered structure in which hydrogen-bonded clusters of molecules are continually forming and breaking apart, with each molecule of water hydrogen-bonding to an average of 3. 4 neighbouring molecule. Consider what happens when a grain of salt, nacl, is added to water. Even in its crystalline form, salt is more appropriately represented in the ionic form, na+ cl-. : consider a system consisting of identical unfolded protein molecules in an aqueous solution. We can again, call on the hydrophobic effect to introduce order. Some of the amino acids that make up proteins have nonpolar group. These nonpolar amino acids have a strong tendency to associate with one another in the interior of the folded protein.

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