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Which consequence results when a fermentation bioreactor's temperature declines, despite constant airflow?

A)Reduced substrate conversion efficiency
B)Increased dissolved oxygen concentration
C)Accelerated ethanol production rate
D)Cell lysis due to thermal shock

💡 Explanation

Reduced temperature decreases the **Arrhenius relationship**, which directly slows enzymatic reaction rates in the bioreactor; therefore, substrates are not converted as efficiently, rather than reactions accelerating because the microorganism’s enzymes no longer have the same activity at suboptimal temperatures.

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