Question

• Which produces more energy? Aerobic or anaerobic respiration?

Answer 1

Because anaerobic respiration is simple and has a few steps were a little bit of ATP is used to break down glucose to produce pyruvate which is not very energetic on its own.

When there is oxygen then the pyruvate continues into a process called Kreb's cycle or the TCA cycle OR citric acid cycle (all the same). It is broken down into many more ATPs so there is more energy as ATP is the biological form of energy. There are MANY steps in the kreb's cycle meaning pyruvate is broken down a small bit each time, creating ATP on the way. THEN there is the electron transport chain which creates more ATP.

BASICALLY! Pyruvate can't be broken down completely without oxygen so the body can't get all the possible ATP out of it. That is why in anaerobic metabolism there is much less energy given out
GLUCOSE + OXYGEN -> ENERGY + CARBON DIOXIDE + WATER

When anaerobic respiration occurs,muscle fatigue is the result. The lack of oxygen in muscles makes them use anaerobic respiration. Glucose is broken down to lactic acid and releases much less energy.
GLUCOSE ->LITTLE ENERGY + LACTIC ACID.
So basically there isn't alot of energy relased through anaerobic respiration because there isn't enough oxygen in the first place to complete the proper reaction.