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Enzymes In Respiration


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Enzymes In Respiration

  1. 1. Enzymes in respiration Honestly – it’s the last thing you have to do on respiration!
  2. 2. Oxidoreductases <ul><li>Key enzymes in redox reactions. </li></ul><ul><li>E.g. enzymes that transfer electrons, hydrogen or oxygen from one molecule to another. </li></ul>Ethanal + NADH + H + ethanol + NAD + alcohol dehydrogenase
  3. 3. Decarboxylase <ul><li>An enzyme that catalyses the reaction to remove carbon dioxide from a molecule. </li></ul><ul><li>e.g. in anaerobic respiration </li></ul>Pyruvate ethanal + carbon dioxide decarboxylase
  4. 4. Dehydrogenase <ul><li>An enzyme that removes hydrogen from a molecule. </li></ul><ul><li>e.g. such as found during Kreb’s cycle. </li></ul><ul><li>The activity of this enzyme can be measured using an artificial hydrogen acceptor such as TTC (triphenyl tetrazolium chloride – which turns pink!) </li></ul>