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STRUCTURE & FUNCTIONS OF PROTEINS <ul><li>Proteins are essential in biological systems as  controls   e.g  enzymes   and  ...
Amino Acids <ul><li>Amino acids are characterised by the  amino group   (NH 2 )  and the  carboxylic acid   (COOH) </li></...
<ul><li>At neutral pH, amino acids exist in ionised forms. Once joined, the charges on amino acids disappear. </li></ul><u...
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