BLG 151 Lecture Notes - Lecture 10: Pentose Phosphate Pathway, Oxidative Phosphorylation, Citric Acid Cycle
25 Nov 2016
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Carbon source often provides h, o, and electrons. Use organic molecules as carbon sources which often also serve as energy source. Can use a variety of carbon sources. Use carbon dioxide as their sole or principal carbon source. Chemotrophs: obtain energy from oxidation of chemical compounds. Despite diversity of energy, electron, and carbon sources used by organisms, they all have the same basic needs. Reducing power to supply to supply electrons for chemical reactions. Some have great metabolic flexibility based on environmental requirements. Provides distinct advantage if environmental conditions change frequently. Answer: i) nadh ii) h2o available for useful work under standard conditions. E"o - standard electron potential at ph7: measure of the tendency of the donor of a half reaction to lose electrons; measure of potential energy. Recall: go standard free energy change at ph7: maximum amount of energy.
