Kerala State PSC Exam Model Paper 6

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Question : 36 of 100

Marks: +1, -0

During fermentation, the saturation concentration of oxygen was reduced from 7 ppm. to 1 ppm. Which one of the following conclusions can be drawn?

Microbial growth is not oxygen limited since the oxygen concentration is lesser than the saturation concentration
Microbial growth is oxygen limited since the oxygen concentration is lesser than the saturation concentration
No conclusion can be drawn
Experimental error leads to the reduction

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