Energy and Metabolism

ID #2120

For the second exam, how much detail do we have to know about the steps of glycolysis and the citric acid cycle. Do we have to know what is formed at every step? Or just what is made at the end?


Prof. Mehrtens has mentioned in lecture that for Glycolysis and the Krebs Cycle you do not need to worry about the details but you should pay attention to what the "yield" is from Glycolysis and the Krebs Cycle. You should know how many ATP/GTP are made in each pathway as well as how many NADH and/or FADH2 are made. You should also be comfortable with exergonic versus endergonic and oxidation/reduction reactions. For example, if you saw a figure where a sugar is being phosphorylated, you should be able to recognize that phosphorylating a compound is endergonic and would therefore need to be coupled to an exergonic reaction, namely the hydrolysis of ATP.

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