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Why organisms that have an ETC as well as fermentation pathways almost never ferment pyruvate if the electron acceptor required by the ETC is available?
Wiki User
∙ 12y ago
Fermentation is extremely inefficient in terms of the number of ATP molecules produced for each molecule of glucose metabolized
Wiki User
∙ 12y ago
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What substance acts as the final electron acceptor in the electron transport system?
Element. Oxygen is the final electron acceptor. Some organisms can use alternative electron acceptors such as sulphate and nitrate they are known as anaerobes.
What is the terminal electron acceptor in aerobic cellular respiration?
NAD+ is the first electron acceptor in cellular respiration (O2 is the final acceptor).
What happens when an excited electron is passed to an electron acceptor in a photosystem?
When an excited electron is passed to an electron acceptor in a photosystem, energy in sunlight is transformed to chemical energy.
Is the element helium an electron donor or acceptor?
Neither. Helium doesn't form compounds and is neither an electron donor nor an electron acceptor.
The final acceptor of electrons in the electron transport chain is?
oxygen
During lactic acid fermentation, what is the final electron acceptor?
Pyruvate
What does an Aerobe use as the final electron acceptor?
Aerobes use oxygen as the final electron acceptor in electron transport phosphorylation. The process that yields a final product called lactate fermentation.
What substance acts as the final electron acceptor in the electron transport system?
Element. Oxygen is the final electron acceptor. Some organisms can use alternative electron acceptors such as sulphate and nitrate they are known as anaerobes.
When an organic product such as pyruvic acid is the final electron acceptor in the metabolic pathway the pathway is termed?
fermentation
Which process is called as- Energy releasing metabolic process in which substrate is oxidised without an external electron acceptor?
fermentation
How do cells determine if they use cellular respiration or fermentation?
At the completion of the glycolic process, pyruvic acid is produced. Some of the pyruvic acid ends up in the cell mitochondria where cellular respiration takes place. In the absence of oxygen, the pyruvic acid goes through a process of fermentation, which takes place in the cytoplasm of the cell.
Does anaerobic cellular fermentation use the same final electron acceptors as aerobic respiration?
No, because the electron acceptor is what cates the electrons as the leave the electron transport chain, which is oxygen in aerobic respiration. Since aerobic respiration uses oxygen, and anaerobic fermentation is abest of oxygen, anaerobic fermentation cannot possibly use oxygen as respiration does.
Does hydrogen serve as the final electron acceptor of the electron transport chain?
No, oxygen is the final electron acceptor of the electron transport chain.
What is the terminal electron acceptor in aerobic cellular respiration?
NAD+ is the first electron acceptor in cellular respiration (O2 is the final acceptor).
What molecule is the final electron acceptor at the end to the electron transport chain?
In aerobic respiration, the final electron acceptor is (usually) oxygen. Sometimes it can be sulfur or nitrogen in the absence of oxygen (as in extreme environments) in extremophiles.
What happens when an excited electron is passed to an electron acceptor in a photosystem?
When an excited electron is passed to an electron acceptor in a photosystem, energy in sunlight is transformed to chemical energy.
Is the element helium an electron donor or acceptor?
Neither. Helium doesn't form compounds and is neither an electron donor nor an electron acceptor.
