BIOL 1000 Lecture Notes - Lecture 7: Cyanobacteria, Atp Synthase, Photosynthesis
31 Jan 2013
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+, asp cooh, glu cooh: at a low ph, this is the fully protenated state, note that acids are proton donors. +, coo -, coo : at neutral ph, nh3. This means that at this ph, they have potentials to make ionic bonds. Therefore, ionic bonds are important in determining tertiary structures (totally folded etc. : at high ph, nh2, coo -, coo . Nadh transfers a hydride to the etc, at the end, the h+ acceptor ends up being final acceptor. Proton motive force (in mitochondria or cell membrane [for bacteria]) passes through atp. When o2 is the final e- acceptor, lots of free energy made: free energy = enthalpy + entropy. Enthalpy heat or radiant (light) energy lost in a reaction = h. A b + energy [exothermic reaction] A + energy b [endothermic reaction] Entropy randomness (chaos) [molecules in the most free and vibrating condition] = s. More randomness there is more potential for energy.
