Multiple choice

Among the following steps, which one does not characterises glycolysis?

  1. For simple fermentations, the metabolism of one molecule of glucose to two molecules of pyruvate has a net yield of four molecules of ATP.

  2. Cells performing aerobic respiration synthesize much more ATP.

  3. The lower-energy production per glucose of anaerobic respiration relative to aerobic respiration results in greater flux.

  4. The second half of glycolysis is characterised by a net gain of the ATP and NADH.

  5. Hydrogen atom balance and charge balance are both maintained in the process of glycolysis.
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A Correct answer
Explanation

For simple fermentations, the metabolism of one molecule of glucose to two molecules of pyruvate has a net yield of two molecules of ATP. Most cells will then carry out further reactions to 'repay' the used NAD+ and produce a final product of ethanol or lactic acid.

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