CM-UY 1004 Lecture Notes - Lecture 5: Ethanol Fermentation, Nicotinamide Adenine Dinucleotide, Cellular Respiration
2 Sep 2016
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Chemical pathways: chemical energy and food a. i. Calorie is the amount of energy needed to raise the temperature of one gram of water one celsius degree a. ii. The calorie used on a food label is a kilocalorie or 1000 calories a. iii. Cells gradually release the energy from glucose and other food compounds a. iii. a. This process begins with a pathway called glycolysis a. iii. a. a. Glycolysis releases only a small amount of energy a. iii. a. b. If oxygen is present, glycolysis leads to two other pathways that release a great deal of energy a. iii. a. c. If oxygen is not present glycolysis follows a different pathway: overview of cellular respiration b. i. In the presence of oxygen, glycolysis is followed by the krebs cycle b. ii. Glycolysis, the krebs cycle and electron transport chain make up a process called cellular respiration b. iii. Cellular respiration is the process that releases energy by breaking down food molecules in the presence of oxygen b. iv.
