What is the role of pyruvic acid in fermentation?

a. It becomes the final electron acceptor for the electron transport chain in the absence of oxygen.
b. It takes the electrons from NADH, oxidizing it back into NAD+.
c. It provides the protons to be used in the electron transport chain.
d. It is the organic acid end-product of fermentation.


Answer: b. It takes the electrons from NADH, oxidizing it back into NAD+.

Biology & Microbiology

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If ATP production is blocked in an animal cell, the cell will swell up. Explain this observation

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