Catalysts require proper what to work?
DNA pH pan RNA elevation time of day gas humidity
A B C D E F G H
An enzyme is a biological catalyst .
Cells secrete acids and bases to maintain the proper pH for catalysts to work
Catalysts require proper what to work? (A) DNA (B) pH (C) pan (D) RNA (E) elevation (F) time of day (G) gas (H) humidity