Question
Asked Nov 7, 2019
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Draw the structure of a salt bridge between two keratin protein strands. What kinds of ions become common in high pH solutions? Would these damage the salt bridge?

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Expert Answer

Step 1

 

Hair contains a protein known as keratin. Keratin contains three bridges: hydrogen bonds, salt bridge and disulfide bridges. A salt bridge is made up of two oppositely charge entities such as COO- and NH3+.

The structure of the salt bridge between two keratin proteins is shown as follows:

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Hydrogen bond -O .H-N- Salt bridge -C-oHN- Disulfide linkage -s-s-

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Step 2

Since, NH3+ makes keratin stronger, in highly basic medium, the concentration of HO- will increase, which decomposes NH3+...

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NH3OHNH,+H20

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