Question

What do amino acids always have?

Answer 1

Amino acids bond together to make long chains. Those long chains of amino acids are also called proteins. Essential Amino Acids: Histidine, Isoleucine, Leucine, Lysine, Methionine, Phenylalanine, Threonine, Tryptophan, and Valine. Nonessential Amino Acids: Alanine, Asparagine, Aspartic Acid, Glutamic Acid.

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