Haemoglobin molecules

- Primary structure (4 polypeptide chains)

- Secondary structure (each polypeptide chain is coiled into a helix

- Quanternary structure (4 polypeptides linked to form almost spherical molecule)

- Each Fe2+ ion can combine with a single oxygen molecule making a total of 4 O2 molecules that can be carried by 1 haemoglobic molecule)

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Haemoglobin molecules

- Primary structure (4 polypeptide chains)


- Secondary structure (each polypeptide chain is coiled into a

helix

- Quanternary structure (4 polypeptides linked to form

almost spherical molecule)

- Each Fe2+ ion can combine with a single oxygen molecule

making a total of 4 O2 molecules that can be carried by 1

haemoglobic molecule)

1 of 2

Haemoglobin molecules

- Primary structure (4 polypeptide chains)


- Secondary structure (each polypeptide chain is coiled into a

helix

- Quanternary structure (4 polypeptides linked to form

almost spherical molecule)

- Each Fe2+ ion can combine with a single oxygen molecule

making a total of 4 O2 molecules that can be carried by 1

haemoglobic molecule)

2 of 2

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