Test

• Where do inorganic ions occur in organisms?

  In solution in the cytoplasm and body fluid
• What is the significance of hydrogen ions in biological systems?

  They determine the pH of substances such as blood
• How does the concentration of hydrogen ions affect pH?

  The higher the concentration of hydrogen ions, the lower the pH
• What role do iron ions play in the body?

  They are a component of haemoglobin
• What is haemoglobin's function in red blood cells?

  It carries oxygen
• What is the role of sodium ions in the body?

  They are involved in the co-transport of glucose and amino acids
• What are phosphate ions a component of?

  DNA and ATP
• What are the essential inorganic ions mentioned in the study material?


  • Hydrogen ions
  • Iron ions
  • Sodium ions
  • Phosphate ions