Biology 1201A Lecture Notes - Lecture 9: Oxidative Phosphorylation, Cellular Respiration, Citric Acid Cycle
25 Nov 2016
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Document Summary
After photosynthesis : after 3 turns of the krebs cycle, g3p forms the basic building block for more complex carb molecules (ch2o, carbs exist as monosaccharide os chains of monosaccharides. Most commonly 3, 5, or 6 carbon molecules. Monosaccharide rings: monosaccharides with 5+ carbons can fold into a ring form. Ring form more common than linear in cells. Polysaccharides: used for a number if cellular functions aside from energy storage. Cellular respiration: c6h12o6 (glucose) + 6o2 > 6co2 + 6h2o + energy (atp, catabolic, exergonic reaction which consumes oxygen and produces water, energy extracted from glucose to a from that the cell can readily use - atp. Why carbohydrates for fuel: electrons which are farther from the nucleus contain more energy, electrons that share c-h bonds are equidistant from both atomic nuclei. High energy - can easily be removed to do work. Controlled vs. uncontrolled combustion of glucose: energy release with electrons transferred to oxygen (oxidation, energy release is uncontrolled.
