객관식
Which of the following statements regarding fermentation is correct?
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12. Microbial Metabolism
Fermentation & Anaerobic Respiration
객관식
Which of the following is true regarding anaerobes?
A
They require oxygen as the final electron acceptor in respiration.
B
They can grow in the absence of molecular oxygen.
C
They exclusively use aerobic respiration for energy production.
D
They are unable to generate ATP without oxygen.
검증된 단계별 안내1
Step 1: Understand the definition of anaerobes. Anaerobes are organisms that do not require molecular oxygen (O\_2) for growth and may even be harmed by its presence.
Step 2: Recall the role of oxygen in cellular respiration. Aerobic organisms use oxygen as the final electron acceptor in the electron transport chain to generate ATP.
Step 3: Recognize that anaerobes either use alternative electron acceptors or rely on fermentation pathways to produce energy, allowing them to grow without oxygen.
Step 4: Analyze the given statements:
- "They require oxygen as the final electron acceptor" is false because anaerobes do not require oxygen.
- "They can grow in the absence of molecular oxygen" aligns with the definition of anaerobes.
- "They exclusively use aerobic respiration" is false because anaerobes do not rely on oxygen.
- "They are unable to generate ATP without oxygen" is false since anaerobes generate ATP through anaerobic respiration or fermentation.
Step 5: Conclude that the true statement about anaerobes is that they can grow in the absence of molecular oxygen.
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