Biology A-Level
iron ions in haemoglobin
What iron ions in haemoglobin means in Biology A-Level, as defined for AQA.
Definition of iron ions in haemoglobin
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Reference: AQA
Each of the four haem groups in a haemoglobin molecule holds one iron ion, binding one oxygen molecule, so one haemoglobin carries four oxygen molecules.
Topics that use iron ions in haemoglobin
- Inorganic ions (AQA A-Level)
Related terms
- hydrogen ions and pH
- inorganic ions
- sodium ions and co-transport
- tertiary structure and pH
- channel and carrier proteins
- ion properties
- phosphate ions
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