Biologists believe that in the first cell that was organized on earth, a reaction may have occurred which was identical to:
Correct answer: B. Glycolysis
- A. Oxidation of pyruvate
- B. Glycolysis
- C. Kreb's cycle
- D. TCA cycle
Explanation
Glycolysis is such a process which is found in both prokaryotes and eukaryotes. It occurs in cytoplasm. Without glycolysis there is no other option for provision of energy to the cell.
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About Bioenergetics
Cellular respiration explains how cells release energy from glucose through glycolysis, the link reaction, Krebs cycle and electron transport chain. It includes ATP production, substrate-level and oxidative phosphorylation, aerobic versus anaerobic respiration, and the roles of mitochondria, oxygen and fermentation in energy transfer.
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