KINESIOL 1F03 Study Guide - Myocyte, Gluconeogenesis, 91 Line
1 May 2013
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Document Summary
Sum of all chemical reactions that occur in the body. Bioenergetics: converting foodstuffs (fats, proteins, carbohydrates) into energy. Dna is kept in a closed and distinct compartment. Cellular membrane (major source of cellular electricity and intra-cellular signaling) Site where we start making new proteins. Endergonic reactions: require energy to be added, endothermic. Exergonic reactions: release energy (transfer to mechanical and/or chemical and thermal, exothermic. Reduction: addition of an electron, oxidation and reduction are always coupled reactions, often involves the transfer of hydrogen atoms rather than free electrons. A molecule that loses a hydrogen also loses an electron and therefore is oxidized. All enzymes are proteins, but not all proteins are enzymes. Low ph is good at denaturing proteins in stomach but low ph is bad in cells because it denatures / slows down enzyme activity. Enzymes phosphorylate glucose to make it available for usage by cels quickly since normal chem reactions take too long.
