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Why does electron transport shut down if oxygen is not available?
Wiki User
∙ 12y ago
Oxygen is the last electron acceptor in the electron transport chain of aerobic cellular respiration. During the process, it combines with the transported electrons and hydrogen ions, forming water as a waste product, which is then removed from the electron transport chain. In order to keep the electron transport chain going, a new oxygen molecule takes the place of the "used" oxygen, and will eventually also combine with electrons and hydrogen ions, and it continues like this as long as the organism lives. Without oxygen, the electron transport chain would stop due to the fact that the transported electrons and hydrogen ions would have nowhere to go, so the transport chain can no longer function, terminating the production of ATP.
Wiki User
∙ 12y ago
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Why is oxygen needed for the final step in cellular respiration?
Oxygen is the final electron acceptor. Oxygen, with it's great electronegativity, pulls electrons through the electron transport chain where these electrons provide the motive force to pump protons into the outer lumen of the mitochondria. When these protons fall down their concentration gradient oxygen is there to pick then up with the electrons and form water.
The oxygen consumed during cellular respiration is involved in what process?
Oxygen consumed during cellular respiration is involved in the electron transport chain; it is the final electron acceptor (this is also what makes it either aerobic or anaerobic respiration).
Two major stages of aerobic respiration?
The two major stages of aerobic respiration are the krebs cycle and electron transport.
What is the result of cascade of electrons down the electron transport chains of the light reactions?
Oxygen
What are the three stages of aerobic respiration?
The first stage is the break down of glucose. The second stage is the Krebs Cycle which breaks down the pyruvic acid. The third stage is the electron transport system which occurs in O2 and in the mitochondria.
Does the hydrogen serve as the final electron acceptor of the electron transport chain?
Oxygen is the final electron acceptor of the electron transfer chain. Hydrogen ( protons ) come down their concentration gradient and through the ATP sythase making ATP. Then they, with the electrons oxygen accepts, become H2O.
Why is oxygen needed for the final step in cellular respiration?
Oxygen is the final electron acceptor. Oxygen, with it's great electronegativity, pulls electrons through the electron transport chain where these electrons provide the motive force to pump protons into the outer lumen of the mitochondria. When these protons fall down their concentration gradient oxygen is there to pick then up with the electrons and form water.
During aerobic respiration electrons are passed down the electron transport chain and what is formed?
Aerobic respiration is a cellular level process in which nutrients are changed into energy. The electrons that pass down the electron transport chain react with oxygen (thus, aerobic) and protons to form water.
The oxygen consumed during cellular respiration is involved in what process?
Oxygen consumed during cellular respiration is involved in the electron transport chain; it is the final electron acceptor (this is also what makes it either aerobic or anaerobic respiration).
What is the final electron receptor in cellular respiration?
oxygen is used to pull electrons down to the Electron Transport Chain which pumps H+ to create H+ gradient :)
What happens to the energy of the electron as it falls down the electron transport chain?
pie
What is a waste product of the electron transport chain?
Protons fall down their concentration gradient through the ATP-synthase and are picked up by oxygen, along with electrons, to make water. So, ATP and water " comes out " the electron transport chain.
Is oxygen broken down in the body to release energy?
Oxygen is used as the end electron receptor in an electron transport change that is used to create a proton gradient across the inner membrane of the mitochondrion. Oxygen forms water when it accepts these electrons. The O2 molecule that oxygen exists as is necessarily split to form water which is H2O
IS OXYGEN BROKEN DOWN TO RELEASE ENERGY TO THE BODY?
Oxygen is used as the end electron receptor in an electron transport change that is used to create a proton gradient across the inner membrane of the mitochondrion. Oxygen forms water when it accepts these electrons. The O2 molecule that oxygen exists as is necessarily split to form water which is H2O
The general idea behind the electron transport chain is?
That ADP is converted to ATP and also that electrons are shuttled down the chin of electron acceptors, until molecular oxygen acts as the final electon acceptor.
Two major stages of aerobic respiration?
The two major stages of aerobic respiration are the krebs cycle and electron transport.
Why does your body need a continuous supply for oxygen?
Your body needs a continuous supply of oxygen due to the biochemical process of aerobic cellular respiration. During the last stage, called the electron transport chain, electrons are transferred along a series of chemicals called electron acceptors. As this occurs, energy is given off to produce molecules of ATP, the energy storage molecule of living things. Oxygen is the last electron acceptor, and once it gains the electrons it bonds with hydrogen to form water, removing the oxygen from the electron transport chain. If a new oxygen atom does not take its place immediately, the electron transport chain shuts down, and your cells will not be able to produce enough ATP to fuel their cellular processes, and they will die, and so will you. So you need a constant supply of oxygen in order to keep the electron transport chain working and producing enough energy (stored in ATP) for survival.
