The main purpose of NADH in fermentation is: To carry electrons to the electron transport chain To be a reducing agent in order to regenerate NAD+ To produce alcohol in heterolactic
The main purpose of NADH in fermentation is:
To carry electrons to the electron transport chain
To be a reducing agent in order to regenerate NAD+
To produce alcohol in heterolactic fermentation
To reduce lactic acid in homolactic fermentation
Cellular respiration: It is catabolic process to get energy from glucose in the form of ATP ( Adenosine triphosphate).
First step is glycolysis:
One glucose molecule undergoes series of metabolic steps and converted into two molecules of pyruvic acid( pyruvate). This process produces 2 ATP and 2 NADH molecules.
Then after glycolysis:
- In the presence of oxygen: aerobic respiration
- In the absence of oxygen: anaerobic respiration like fermentation
In the presence of oxygen:
Aerobic respiration : complete oxidation of glucose into carbon dioxide and water.
Pyruvate is transported into mitochondria for citric acid cycle and electron transport system to extract energy via oxidative phosphorylation.
The main purpose of NADH in aerobic cellular respiration is to carry electrons to the electron transport chain.
Hence , 1st option is incorrect
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