25. Haemoglobin and collagen
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14 Terms
What kind of protein is haemoglobin?
Globular protein
How many polypeptides in haemoglobin?
4
Describe the structure of haemoglobin?
Curled up
What happens because haemoglobin is curled up
Hydrophilic side chains face out and hydrophobic side chains face in
What does the fact hydrophobic side chains face in and hydrophilic side chains in mean?
Makes haemoglobin soluble so good for transport in blood
Describe the polypeptides in haemoglobin?
Each is polypeptide is different (4 genes or haem)
What is haemoglobin associated with?
Non protein groups (haem)
What structure does haemoglobin have?
Quaternary
What kind of protein is collagen?
Fibrous
How many polypeptide chains does collagen have?
3 tightly coiled into strong triple helix
Describe the polypeptides in collagen?
Each is the same (only 1 gene needed to code for collagen)
How are polypeptide chains joined in collagen?
Covalent bonds
What can bind to collagen?
Minerals can bind to triple helix to increase strength
What is collagen not associated with?
Non protein groups
Note 
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