17
Question
The energy-releasing metabolic process in which substrate is oxidised without an external electron acceptor is called
The energy-releasing metabolic process in which substrate is oxidised without an external electron acceptor is called
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Solution
The correct option is B Fermentation
In Fermentation, the ATP are generated only during the glycolysis. In order to make sure that the glycolysis continues to occur, the electron acceptor called NAD is required to be supplied constantly. Therefore, in fermentation process, the regeneration of these NAD occurs which now exists in the form of NADH (after accepting electron in glycolysis). Since, there is no usage of oxygen, there is no external electron acceptor. Oxygen acts as electron acceptor in aerobic respiration during the electron transport chain. In fermentation, either the pyruvate or the acetaldehyde , which have been formed internally in the process. Hence, the correct answer is 'Fermentation'
In Fermentation, the ATP are generated only during the glycolysis. In order to make sure that the glycolysis continues to occur, the electron acceptor called NAD is required to be supplied constantly. Therefore, in fermentation process, the regeneration of these NAD occurs which now exists in the form of NADH (after accepting electron in glycolysis). Since, there is no usage of oxygen, there is no external electron acceptor. Oxygen acts as electron acceptor in aerobic respiration during the electron transport chain. In fermentation, either the pyruvate or the acetaldehyde , which have been formed internally in the process.
Hence, the correct answer is 'Fermentation'
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