A Biologist Trying to Determine the Mechanism of Adenosine Triphosphate

question 33

Multiple Choice

A biologist trying to determine the mechanism of adenosine triphosphate (ATP) production in a newly discovered bacterium provides several different substrates on which the bacteria can feed. Which of the following results would indicate that the species uses fermentation to produce ATP?

• A) The bacteria utilize glucose and produce carbon dioxide as a by-product of respiration.
• B) After the bacteria break down their substrate, the biologist notices a rotten egg smell.
• C) The biologist discovers that the bacteria are able to produce organic molecules by metabolizing methane.
• D) After exposure to amino acids, the bacteria produce a smell like rotting flesh.

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