You are presented with the question "For biological catalysts to maintain proper pH, what is needed to maintain proper pH?" and the following answer choices: 
- Fully cooking the oysters
 - raising their temperature
 - Organic compounds
 - Something made from fermented ricce
 - metabolic reaction
 - Chemical energy
 - Something coming from a gland
 - secretion of acids and bases

Now knowing that cells secrete acids and bases to maintain the proper pH for enzymes to work and enzyme mechanisms Enzymes are biological catalysts, choose the best answer.


 

        secretion of acids and bases 