EnergyMetabolism/NutrientAndEnergyy/EnergyMetabolismWithoutOxygen

Energy metabolism without the use of oxygen is not so efficient. Out of the 6 chemical energy (shown in red lines) inside the nutrient, only 2 are removed and 4 remain in the degradation product.

Please note that the actual degradation is not simply removing connection, but also inserting H and OH, etc., this straight-forward illustration. To show the essential point of energy metabolism shows reaction that do not actually occur.

Challenge Quiz

1.

Efficiency of energy metabolism is high low  正解! without the use of oxygen.

2.

Without the use of oxygen, large small  正解! amount of energy are taken out by energy metabolism.

3.

Without the use of oxygen, there are large small  正解! amount of energy remaining in the degradation product.