Inorganic ions

• Inorganic ions occur in solution in the cytoplasm and body fluid of organisms, some in high concentrations and others in very low concentrations.
• Some of the essential ions include:

  • hydrogen ions which determine the pH of substances such as blood the higher the concentration of hydrogen ions the lower the pH

  • Iron ions are a component of haemoglobin which is an oxygen carrying molecule in red blood cells

  • Sodium ions are involved in co-transport of glucose and amino acids

  • Phosphate ions are a component of DNA and ATP