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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.
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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).
What happens when oxygen is present and includes glycolysis and Krebs cylcle and Electron transport?
In the presence of oxygen, glycolysis breaks down glucose to produce pyruvate which then enters the Krebs cycle. In the Krebs cycle, pyruvate is further broken down to produce ATP, NADH, and FADH2. These electron carriers then enter the electron transport chain where they donate electrons to generate more ATP through oxidative phosphorylation.
What is the input in for aerobic respiration?
The inputs for aerobic respiration are glucose and oxygen. Glucose is broken down in a series of chemical reactions to produce ATP (energy), while oxygen is the final electron acceptor in the electron transport chain.
If a cell has no oxygen what stages of aerobic cellular respiration can still run?
If there is no oxygen available, only glycolysis can still run in anaerobic conditions. The Krebs cycle and electron transport chain, both of which require oxygen, cannot proceed. Glycolysis produces ATP by breaking down glucose into pyruvate without the need for oxygen.
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.
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 :)
Can the kreb's cylce occur if there is no oxygen?
No, the Krebs cycle requires oxygen as the final electron acceptor in the electron transport chain to function properly. Without oxygen, the electron transport chain cannot proceed, leading to a buildup of molecules that inhibit the Krebs cycle. This can result in the Krebs cycle slowing down or ceasing altogether.
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 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.
What does cellular respiration take in?
Cellular respiration requires a macromolecule to be broken down (usually glucose) and a final electron acceptor for the end of the electron transport chain (usually oxygen in most organisms). The reactants are a product of photosynthesis.
Which substances are reactants in respiration?
The main reactants in respiration are glucose and oxygen. Glucose is broken down in a series of chemical reactions to produce ATP, while oxygen serves as the final electron acceptor in the electron transport chain to generate energy.
Where are the two reactants in cellular respiration?
The two reactants in cellular respiration are glucose and oxygen. Glucose is broken down in a series of chemical reactions to release energy, and oxygen acts as the final electron acceptor in the electron transport chain to produce ATP.
What happens to the energy of the electron as it falls down the electron transport chain?
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What happens when oxygen is present and includes glycolysis and Krebs cylcle and Electron transport?
In the presence of oxygen, glycolysis breaks down glucose to produce pyruvate which then enters the Krebs cycle. In the Krebs cycle, pyruvate is further broken down to produce ATP, NADH, and FADH2. These electron carriers then enter the electron transport chain where they donate electrons to generate more ATP through oxidative phosphorylation.
What is process uses oxygen to break down glucose?
The process that uses oxygen to break down glucose is called cellular respiration. In this process, glucose is oxidized to produce ATP, which is the energy currency of the cell. Oxygen is the final electron acceptor in the electron transport chain, which generates the majority of ATP during cellular respiration.
