Amino acids combine with each other to form polypeptides,which are components of food and body proteins.The number of amino acids in a protein varies between 10 and 25,but each protein has a specific number.

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The first statement is true; the second is false.The number of amino acids in a protein varies greatly from 100 to 300,as opposed to 10 to 25,with each protein having a specific number.Note that a polypeptide is composed of more than two amino acids,whereas a dipeptide contains only two amino acids.

Amino Acids Combine with Each Other to Form Polypeptides,which Are