- 2.5 Proteins
- Amino acids join by hydrolysis to form proteins; these bonds are called peptide bonds.
- Numerous but easily broken.
- Between different polypeptides, and are weaker than disulphide bonds. They are easily broken by changes in pH.
- Very strong and difficult to break.
- Protein Structure
- Helixes and pleated sheets may form a 3D structure due to disulphide, ionic and hydrogen bonds
- Coiling or folding of proteins into helix' or pleated sheets due to hydrogen bonds forming
- The final 3D structure of different polypeptide chains.
- Order of amino acids in polypeptide sequence
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