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ICSE Class 7 Answered

it asked me a question that how much ATP is produced in aerobic respiration it showed 40 atp where it should be 38 atp.
Asked by alokeshproy | 21 Feb, 2023, 08:12: PM
answered-by-expert Expert Answer
Aerobic respiration involves two phaes:
  • Glycolysis which occurs in the cytoplasm
  • Krebs cycle which occurs in the mitochondria
Glycolysis is the breakdown of glucose into two molecules of pyruvate; occurs outside the mitochondria, which yields 2 ATP molecules. 
Enzymes for the Krebs cycle are located in the fluid-filled matrix of the mitochondria. Therefore, pyruvate diffuses into mitochondria and the gets converted into acetyl CoA to enter citric acid cycle. During citric acid cycle, 36 ATP molecules are produced.
So, all together there are 38 molecules of ATP produced in aerobic respiration.
Answered by Sheetal Kolte | 22 Feb, 2023, 10:21: AM

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