How can an obligate aerobe still grow without oxygen by carrying out anaerobic respiration? this lab...

How can an obligate aerobe still grow without oxygen by carrying out anaerobic respiration?

this lab is about nitrate reduction and how it is one form of anaerobic respiration.

Expert Solution

solution

Obligate aerobes are live in the presence of oxygen only but some bacterial strain can utilize NO3 instead of O2 as an electron acceptor to proceed anaerobic respiration.
Enzyme Nitrate reductase (on inner membrane) is responsible for nitrate reduction in obligate aerobe to start anaerobic respiration.
Nitrate is a molecule having high reduction potential act as terminal electron acceptor in many anaerobic bacteria.

gladiator answered 2 years ago

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