Quaternary Structure; Haemoglobin and Collagen summary activity

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  • Created by: sjones1
  • Created on: 24-03-16 17:44

1. what is meant by the term Quaternary structure

  • a protein structure that consists of alpha helix's
  • Protein structure where a protein consists of more than one polypeptide chain.
  • a sequence of amino acids
  • a protein structure that consists of only one polypeptide chain
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2. which type of bond holds collagen molecules together forming cross-links?

  • disulfide
  • hydrogen
  • covalent
  • ionic

3. what is the function of collagen?

  • to hold the body together
  • to provide mechanical strength in many areas
  • to carry out metabolic activities
  • there is no particular function

4. what is the function of haemoglobin?

  • to provide energy to muscles
  • to carry oxygen from the lungs to the tissues
  • to increase the water potentional within the blood vessels
  • to regulate temperature

5. describe one difference between the structure of haemoglobin and collagen

  • Haemoglobin contains a prosthetic group whereas collagen does not have a prosthetic group
  • Haemoglobin is insoluble in water whereas collagen is soluble in water
  • one is a protein and one is a carbohydrate
  • there are no differences between the two

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