Cells secrete acids and bases to maintain the proper pH for enzymes to work, and most human enzymes work at a optimal pH of 7.4, but other enzymes work at many different pH ranges. Given these facts, cells secrete acids and bases to maintain what among the following options:
- Chemical energy
 - resistance
 - increases a body's strength
 - To keep their body heat.
 - most human enzymes
 - aerobic capacity
 - allow growth
 - temperature


 

     most human enzymes    