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 is a straight-forward illustration to show the essential point of energy metabolism with 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, many few  正解! energy are taken out by energy metabolism.

3.

酸素を使わないとき、代謝産物に残るエネルギーは 多い 少ない  正解!。