Biology 9700 · AS & A Level · Movement into and out of cells

Movement into and out of cells — practice question

The diagram illustrates the route by which carbon dioxide is transported in red blood cells.

  • A1: carbaminohaemoglobin; 2: haemoglobinic acid; 3: hydrogen ions; 4: hydrogencarbonate ions
  • B1: carbonic anhydrase; 2: carbonic acid; 3: hydrogen ions; 4: hydrogencarbonate ions
  • C1: carboxyhaemoglobin; 2: carbonic anhydrase; 3: carbonic acid; 4: carbon dioxide
  • D1: haemoglobinic acid; 2: carbonic acid; 3: hydrogencarbonate ions; 4: hydrogen ions

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