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    1)Fibrous protein are structural proteins that have a secondary structure. But why collagen(fibrous protein ) has tertiary structure?

    For fibrous protein:
    Different proteins may have similar shape, and the length of the same protein may vary

    But what same protein?

    2)prosthetic group means inorganic or non-protein?



    Thanks!!!!!!!!!




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    Right OK

    A tertiary structure is basically two or more proteins bonded together. Collagen is three strands of protein/fibre which are wound into a helix shape, and they are bonded by hydrogen bonds.

    Umm i need a bit more info about what you mean by the same protein bit!! soz

    A prosthetic group is an additional group added to a protein that isn't directly part of the proetin, but is vital to the proteins function. For instance in haemoglobin, the prosthetic group is iron, which is inorganic

    Hope that helped!!!
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    The above post is correct except that the assembly of multiple proteins forms a quaternary (not tertiary) structure - collagen is comprised of three protein strands that each have a helical structure to form a larger helix which has greater structural stability.
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    Aha yeah sorry!!im doing A2 now so i havent revised my AS stuff!!
 
 
 

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