Cells secrete acids and bases to maintain the proper pH for enzymes to work, and enzymes help to break down proteins so that the bacteria can do their thing better. Given these facts, why do cells secrete acids among the following options:
- Make money
 - resistance activities
 - allow growth
 - Plant growth is reduced
 - Break down proteins
 - Hurt things
 - increases a body's strength
 - Help friends


 

     Break down proteins    