Animation - Cells and Chemistry

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University of Phoenix Material Animation: Cells & Chemistry Glycolysis After viewing the animation, answer these questions. Cells derive energy from the oxidation of nutrients, such as glucose . The oxidation of glucose to pyruvate occurs through a series of steps called glucosis . How many carbons are in a molecule of glucose? 6 The energy related during these oxidation reactions is used to form adenosine triphosphate ( ATP ), the __energy currency of the cell. Name the two initials steps in glycolysis. 2 phosphates are added to the glucose molecule at the expense of the 2 molecules of ATP What are the three molecules that results? a 6 carbon sugar diphosphate molecule and 2 low energy adenosine diphosphate molecules or ADP What then occurs to the 6-carbon molecule? It splits in to two 3-carbon molecules The 3-carbon molecules are converted to pyruvate . What happens to the electrons in this reaction? What two molecules are formed? They are transferred to the coenzyme NAD+ to form NADH and ATP is formed What happens to the pyruvate under aerobic conditions? The pyruvate is garter oxidized to yield more ATP What happens to the pyruvate under anaerobic conditions? The pyruvate is converted into lactic acid Diffusion After viewing the animation, answer these questions. Molecules dissolved in a solution are in constant random motion due to their kinetic energy . One result of this motion is that dissolved molecules become evenly distributed throughout the solution . This tendency of molecules to spread out is an example of __diffusion . Even as a solid lump, the individual sugar molecules are in motion

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