BIS 2A Lecture Notes - Lecture 2: Allosteric Regulation, Protein Structure, Activation Energy
Document Summary
Can bind and unbind to protons in solution to regulate ph. If ph is lower than what is wanted (ph < pka) Will become protonated (gain a proton from the solution) If ph is higher than what is wanted (ph > pka) Will be deprotonated (release a proton into solution) Used to keep ph stable (like in blood) Measures the strength of acid (how easily it will give up a proton) Only partially dissociate (don"t like to give up their h+ as much) The more en an atom is the more acidic. When ph = pka equal amount protonated/deprotonated. Hydrophobic (nonpolar), usually c-c or c-h bonds, low solubility in water. Fats, oils: polar head + nonpolar triglyceride tail. Fatty acid tail linked to glycerol backbone. Steroids: fats that have 4 carbon rings. Cholesterol is a steroid, precursor to bile salts, helps emulsify fats. Make up the dual layer of cell membranes. Fatty acid chains and a polar head group.
