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Cellular respiration takes place in three phases. We have glycolysis, the tricarboxylic acid (TCA) cycle (or fermentation of there is limited oxygen), and then the electron transport chain where the bulk of ATP is produced. I will discuss glycolysis here. The word glycolysis comes from ‘glyco’ which refers to glucose and ‘lysis’ which means to […]

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The isoelectric point of an amino acid or protein is the pH at which the net charge is zero. Determining pI When There Is No Ionizable Side Chain If the amino acid does not have any ionizable side chain, then you can determine the pI by simply averaging the pKa of the amino and carboxylic […]

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