NUTR 482 Lecture Notes - Lecture 1: Hexokinase, Glyceraldehyde 3-Phosphate, Blood Sugar

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Homework 1: please discuss in your own words the following metabolic pathways. Be sure to highlight key steps and key products. If drawing a diagram helps you remember (it does me) then draw a diagram. (glycolysis, glycogenesis, and glycogenolysis) Glycolysis is the process of breaking down glucose into two 3-carbon pyruvates, two (net) atp and two nadh. There are ten total steps in glycolysis, however a key event takes place after the third step which may serve to divide the process into two phases. When fructose-1,6-biphosphate is broken down into either glyceraldehyde-3-phosphate (g-3-p) or dehydroxyacetonephosphate (dhap), only glyceraldehyde-3-phosphate can continue on to be converted to pyruvate. In the steps before fructose-1,6-phosphate is broken down, phase one, energy is required. This energy comes in the form of atp (2) that is used up. In the steps following the breakdown of fructose-1,6-biphosphate, phase 2, energy is released in the form of.

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