a dipeptide is formed when 2 amino acids join together, by a condensation reaction, ( water molecule being released during the reaction)
3 of 9
What is the primary structure of a protein?
The primary structure is the sequence of amino acids in the polypeptide chain.
4 of 9
What is the secondary structure of a protein?
The secondary structure is when the polypeptide coils/ folds in to an alpha helix or beta pleated sheet due to hydrogen bonds forming
5 of 9
What is the tertiary structure of a protein?
Tertiary structure is when they coil/fold further and more bonds form between different parts of the polypeptide chain. For proteins with a single polypeptide chain this is the final 3D shape.
6 of 9
What is the quaternary structure of a protein?
For proteins that have more than one polypeptide chain held together by bonds, its the way they are assembled together. its their final 3dshape
7 of 9
Why is the shape of the protein important?
Because it determines its function.
8 of 9
Explain the quaternary structure of collagen.
They have 3 polypeptide chains wound together like a rope.The chains are unbranched in primary structure and secondary structure the polypeptide chain is very tightly wound and then twisted into a 2nd helix in the tertiary structure.
Comments
No comments have yet been made