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When Bacillus subtilis grows aerobically, it will metabolize glucose by aerobic respiration. How many ATP molecules...

When Bacillus subtilis grows aerobically, it will metabolize glucose by aerobic respiration.

How many ATP molecules will it produce by catabolizing one molecule of glucose?

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Answer:

In aerobic respiration by Bacillus subtilis, 38 ATP molecules can be generated by completely catabolizing one molecule of glucose. (this assumes 1NADP(H) = 3 ATPs)

Most aerobes will oxidize glucose completely to produce water and carbon dioxide and energy is generated in the form of ATP, the energy currency of the cell. This complete oxidation is carried our in cell respiration.

The complete oxidation of glucose is done in 3 fundamental pathways, namely - glycolysis / Kreb's Cycle (or TCA) and Electron Transport Chain (ETC) of respiration.

Just to add- thermodynamically oxidation of glucose is only 55% efficient.

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