The given diagram shows some of the reactions that occur in the preparatory phase of glycolysis.The conversion that takes place at step 1 and 3 is:
Correct answer: A. ATP→ADP
- A. ATP→ADP
- B. ADP→ATP
- C. NAD+→NADH
- D. NADH→NAD+
Explanation
During the preparatory phase of glycolysis, 2 molecules of ATP are invested to convert glucose to Glucose-6-phosphate and fructose-6-phosphate to fructose-1,6-bisphosphate. So option A is correct.
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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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