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Multiple Choice
Which molecule typically serves as the final electron acceptor during anaerobic respiration, specifically in fermentation?
A
Pyruvate
B
Oxygen
C
Nitrate
D
Sulfate
Verified step by step guidance
1
Understand the context of anaerobic respiration: Anaerobic respiration occurs in the absence of oxygen and involves the breakdown of glucose to generate energy.
Recognize the role of fermentation: Fermentation is a type of anaerobic respiration where organic molecules are used as the final electron acceptors instead of oxygen.
Identify the common types of fermentation: The two main types are lactic acid fermentation and alcoholic fermentation.
Determine the final electron acceptor in fermentation: In lactic acid fermentation, pyruvate is reduced to lactate, serving as the final electron acceptor.
Consider the options given: Pyruvate is the correct answer as it is the final electron acceptor in lactic acid fermentation, which is a common form of anaerobic respiration.