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Question
In an aerobic attached-culture system, the biomass present at the biofilm-medium surface interface experiences
A.
Aerobic and endogenous metabolism
B.
Anaerobic and exogenous metabolism
C.
Anaerobic and endogenous metabolism
D.
Aerobic and exogenous metabolism
Answer ( Option C)

Anaerobic and endogenous metabolism

Solution

In the inner portion of the biofilm cover, anaerobic and endogenous metabolism conditions develop since there is little or no supply of oxygen in that portion.

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