ions

• calcium(c)


  nervous impulse transmission
• sodium

  active transport
• potassium (k)


  nervous impulse transmission
• hydrogen(h)


  ph regulation
• ammonium 


  nitrogen source for organic molecules
• nitrate 


  source of nitrogen for organic molecules
• bicarbonate


  transport of carbon dioxide in the blood stream
• chloride


  chloride shift
• phosphate (po4)


  component of biological molecules
• hydroxide


  ph regulation