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Anthony Bray MD
Anthony Bray MD, Physician
Category: Dermatology
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Experience:  14 years of Family Practice Experience including most dermatology problems
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You have two species of bacteria. One is an obligate

Customer Question

You have two species of bacteria. One is an obligate fermenter which can catabolize both glucose and fructose; the second is a facultative respire which can only catabolize glucose.
You have two growth conditions. Media containing an equal amount of glucose and fructose incubated aerobically; and the same media incubated anaerobically.
Under each condition, predict which organism will grow to a greater number of cells when the cultures reach a stationary phase. Explain your answers.
Submitted: 1 year ago.
Category: Dermatology
Expert:  Anthony Bray MD replied 1 year ago.

Hello !

An "OBLIGATE FERMENTER" would mean that it can ONLY survive in the ABSENCE of oxygen ...

This organism would dominate the culture grown anaerobically

The bacteria that has facultative respiration means that it can survive with or without oxygen but it does better ibn the presence of oxygen....

So if bacteria A is your OBLIGATE FERMENTER

And bacteria B is your faculatative respiration organism

Then AEROBICALLY the culture favors B

Anerobically favors A

I hope that this information is helpful for you

Let me know if you have further questions or concerns

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Anthony Bray MD