BSC 114 Lecture Notes - Lecture 14: Pyruvic Acid, Mitochondrial Matrix, Atp Synthase

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Cellular respiration- set of metabolic reactions and processes that take place in the cells of an organism to convert chemical energy from nutrients into adenosine triphosphate (atp) The breakdown of organic molecules by catabolic reactions is exergonic (proceed with a net release of free energy) Aerobic respiration consumes organic molecules and oxygen (o2) and produces. Although carbohydrates, fats, and proteins are all consumed as fuel, it is helpful to trace cellular respiration with the sugar glucose: C6h12o6 + 6o2 > 6co2 + 6h2o + energy (atp + heat) Chemical reactions that transfer electrons between reactants are called oxidation- reduction reactions, or redox reactions. The electron donor is called the reducing agent, or reductant. The electron acceptor is called the oxidizing agent, or oxidant. Some redox reactions do not transfer electrons but change the electron sharing in covalent bonds. An example is the reaction between methane and oxygen. Oxidation of organic fuel molecules during cellular respiration.

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