inorganic ions
- Created by: Margaret Hobart
- Created on: 29-04-21 12:08
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- inorganic ions
- don't contain carbon
- found in solution e.g cytoplasm and bodily fluids
- iron ions
- important part of haemoglobin
- Hb is a large protein that carries oxygen in the red blood cells
- made from 4 different polypeptide chains each with Fe+ in the centre
- Fe+ binds to the oxygen in Hb
- when oxygen is bound the Fe2+ becomes Fe3+ until oxygen is released
- Fe+ binds to the oxygen in Hb
- important part of haemoglobin
- hydrogen ions
- determine pH
- higher H+ concentration= lower pH
- sodium ions
- Na+ helps transports glucose and amino acids across membranes
- glucose/amino acid can be transported alongside Na+
- co-transport
- phosphate ions
- essential components to ATP and DNA
- it's the bonds in these phosphate groups that store energy in ATP
- the phosphate groups in DNA and RNA allow nucleotides to join to forma polynucleotide
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