Number of ATP molecules produced from 1 glucose molecule in aerobic respiration.

• A. 38
• B. 32
• C. 30
• D. 28

The process of aerobic respiration is crucial for energy production in cells. When one molecule of glucose undergoes aerobic respiration, it can yield a significant amount of ATP, the energy currency of the cell.

ATP Yield from Glucose

In aerobic conditions, the complete oxidation of one glucose molecule typically results in the production of:

• 2 ATP from glycolysis
• 2 ATP from the Krebs cycle
• Approximately 34 ATP from the electron transport chain

Total ATP Production

When you add these together, the total ATP yield is around 36 to 38 ATP molecules, depending on the efficiency of the electron transport chain and the shuttle systems used to transport electrons into the mitochondria.

Therefore, the most commonly accepted answer is A. 38 ATP, although some sources may cite 36 or 32 ATP due to variations in calculations.