1.

Many proicin-based biomaterlialist such as waste hair and feathers, can absorb heavy metal ions from waste water. It has been observed that metal uptake by these materials increases in alkaline condition. The enhanced uptake in alkaline conditions is due to:

Answer»

generation of many ligand sites in the protein molecules due to removal of `H^(+)`
availability of a high concentration of`OH^(-)` ions as ligands
increased cross-linkages in the protein CHAINS by formation of amide bonds
increase in solubility of the proteins

Solution :Alkaline medium enhances the ligand STRENGTH due to removal of `H^(+)`.


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