The following processes require oxygen to occur:
- Conversion of pyruvic acid to Acetyl CoA
- Production of water in the electron transport chain
- Oxygen is required for some metabolic activities that occur in our cells. These processes are termed aerobic while those that do not require oxygen are termed anaerobic.
Some of the processes that require oxygen are as follows:
1. Conversion of pyruvic acid to Acetyl CoA: Pyruvic acid is a product of the glycolytic process of cellular respiration. However, in the presence of oxygen, cellular respiration can proceed to the Krebs cycle or citric acid cycle, which forms acetyl COA.
2. Production of water in the electron transport chain: Electron transport chain (ETC) is a series of processes that involve the transfer of electrons from one molecule to the other. In the ETC that occurs in the mitochondria, oxygen is the final electron acceptor that forms water.
Therefore, the conversion of pyruvic acid to Acetyl CoA and production of water in the electron transport chain are processes that require oxygen.
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