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What is the total number of ATPs produced by cellualar metabolism (per glucose molecule)?

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Answer:

38 ATP

Step-by-step explanation:

One molecule of glucose on complete breakdown yields 38 ATP. The break up of APT production at different steps of cellular respiration is given below:

  • Glycolysis yields 4 ATP and 2 NADH is produced, but 2ATP is used. Net gain of 2ATP.
  • During formation of Acetyl CoA, 2 NADH is produced.
  • During Krebs cycle 2 ATP, 6 NADH, 2 FADH₂ are produced.
  • During Electron transport chain, reduced coenzymes NADH and FADH₂ oxidised to release ATP.

Each NADH releases 3 ATP and each FADH₂ releases 2 ATP. Altogether 10 NADH is produced which yield 30 ATP and 2 FADH₂ yields 4 ATP.

Therefore, on complete oxidation of one molecule of glucose yields 38 ATP.

User Tim Pierce
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