A prokaryote is most likely to use which of the following modes of metabolism to release energy if it is in an environment without oxygen, dies when exposed to oxygen, and uses fermentation? A. Obligate anaerobe B Heterotroph C. Facultative anaerobe D. Photoautotroph

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20-06-2018
Biology

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A prokaryote is most likely to use which of the following modes of metabolism to release energy if it is in an environment without oxygen, dies when exposed to oxygen, and uses fermentation? A. Obligate anaerobe B Heterotroph C. Facultative anaerobe D. Photoautotroph

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Felecityyy Felecityyy · Answer 1 · 2018-06-20T07:47:38+02:00

It's letter A - Obligate anaerobe.

Obligate anaerobes are microorganisms killed by normal atmospheric concentrations of oxygen. A facultative anaerobe prefers to produce energy in the presence of oxygen but can survive without it. A photoautotroph is an organism that converts light energy into chemical energy. Prokaryotes may perform aerobic (oxygen-requiring) or anaerobic (non-oxygen-based) metabolism and some can switch between these modes. Since we're talking about an environment without oxygen and dies when exposed to oxygen, the preferable answer is A.

legolover28857573 legolover28857573 · Answer 2 · 2019-03-11T18:06:24+01:00

legolover28857573 legolover28857573

11-03-2019

the answer is B. OBLIGATE anaerobe. it is the only one that is poisoned by oxygen. if you want to see for yourself just type into google (obligate anaerobe) Took the test and got a 100% :)

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