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What is the final electron and proton acceptor in the electron transport chain?
The energy from the transfer of electrons along the chain transports protons across the membrane and creates an electrochemical gradient. Since oxygen is the final electron acceptor, the process is called aerobic respiration.
What is the final acceptor of electrons in respiration?
Oxygen is the final electron acceptor in this respiratory cascade, and its reduction to water is used as a vehicle by which to clear the mitochondrial chain of low-energy, spent electrons. The enzyme that catalyzes this process, cytochrome oxidase, spans the mitochondrial membrane.
What is the final acceptor of electrons in the electron transport quizlet?
Oxygen is the final electron acceptor, and it has the highest affinity for electrons. When oxygen accepts an electron, it is reduced to water.
What is the best electron acceptor?
Oxygen
Oxygen (O2) is the best electron acceptor and is used in many aerobic reactions (reactions with oxygen).
What is the final electron except or of the electron transport chain quizlet?
Oxygen serves as the final electron acceptor of the Electron Transport Chain. Thus, oxygen is essential for getting rid of low-energy electrons and hydrogen ions, the wastes of Cellular Respiration. Without oxygen the Electron Transport Chain cannot function.
Is an electron acceptor?
An electron acceptor is a chemical entity that accepts electrons transferred to it from another compound. It is an oxidizing agent that, by virtue of its accepting electrons, is itself reduced in the process. Electron acceptors are sometimes mistakenly called electron receptors.
What is the final electron acceptor for the electron transport chain?
In aerobic respiration, the final electron acceptor for the electron transport chain is an oxygen molecule, O 2.
What is the final electron acceptor in cellular respiration Quizlet?
Explanation: In cellular respiration, oxygen is the final electron acceptor. Oxygen accepts the electrons after they have passed through the electron transport chain and ATPase, the enzyme responsible for creating high-energy ATP molecules. Just remember cellular respiration— respiration means breathing, and you cannot breathe without oxygen.
What happens to the electron transport chain if there is no oxygen?
Oxygen is the final electron acceptor in the electron transport chain, which allows for oxidative phosphorylation. Without oxygen, the electrons will be backed up, eventually causing the electron transport chain to halt. This will cause the products of glycolysis to go through fermentation instead of going to the citric acid cycle.
What happens to the electron transport chain when a cell is starved?
This accounts for the reason as to why, when cells are starved of oxygen, the ETC “backs up” and the cell will divert to using anaerobic respiration, such as fermentation. At the end of the electron transport chain, the electron and a proton are passed to an oxygen molecule to produce water.