Amino acids are the chain of protein molecules. Some amino acids can be synthesized by animals. Those that cannot are called essential amino acids. For man these are: a) arginine, b) histidine, c) isoleucine, d) leucine, e) lysine, f) methionine, h) phenylalanine, i) threonine, j) tryptophan and valine.
What is AMINO ACIDS?
AMINO ACIDS: "There are 20 naturally occurring amino acids."
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