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The Entner-Doudoroff pathway differs from glycolysis chiefly in that it yields ________.

  • A.no ATP at all
  • B.only 1 net ATP per glucose
  • C.4 net ATP per glucose
  • D.6 net ATP per glucose

Answer: B

Correct answer: only 1 net ATP per glucose

The Entner-Doudoroff pathway produces a net 1 ATP, along with 1 NADH and 1 NADPH, per glucose. Despite the lower yield it is the main route in Pseudomonas and several other Gram-negative genera, and its distinctive intermediate KDPG is used to identify it.

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