1.10 Inorganic ions

• ion

  A charged atom
• inorganic ion


  an ion that does not contain carbon
• Where are inorganic ions found?

  cytoplasm, bodily fluids, water in soil
• Role of iron


  -haemoglobin

  -binds to oxygen so haemoglobin can carry it
• role of hydrogen


  • determines pH
  • more H+ ions= lower pH
• role of sodium


  co-transport of glucose and amino acids across cell membranes
• role of phosphate

  DNA, RNA and ATP
• role of phospholipids


  cell membranes
• role of magnesium


  -chlorophyll

  -attracts light for photosynthesis