A Biologist Trying to Determine the Mechanism of ATP Production

question 13

Multiple Choice

A biologist trying to determine the mechanism of 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 CO₂ 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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