In Anaerobic respiration, only _ % of the energy present within the chemical bond of glucose is converted into ATP.
Correct answer: B. 5.5
- A. 4.5
- B. 5.5
- C. 7.5
- D. 6.7
Explanation
Because in anaerobic reaction only glycolysis takes placse in which glucose is given 2 ATP and then at the end pyruvate is formed with 4 ATP, the net gain is 2 ATP hence the answer is B. On the other hand, aerobic respiration produces 36 ATP molecules at the end of oxidative phosphorylation. Hence, the % of energy released by anaerobic respiration is 2/36 x 100%= 5.5%
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About Cellular Respiration
Cellular respiration releases energy from glucose through glycolysis, the link reaction, the Krebs cycle and the electron transport chain, producing ATP. The pathway differs in oxygen availability: aerobic respiration uses oxygen and yields more ATP, while anaerobic respiration produces much less ATP and forms lactic acid in muscles or ethanol and carbon dioxide in yeast.
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