If a low-quality protein is the only protein source ingested,it cannot support life or normal growth.High-quality proteins are well balanced in their essential amino acid content.

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The first statement is false; the second is true.Low-quality proteins,if fed as the only protein source,support life,but not normal growth.These include proteins found in legumes,nuts,and grains.The amino acid in short supply relative to need is referred to as the limiting amino acid.Conversely,high-quality proteins are well balanced in their essential amino acid content.

If a Low-Quality Protein Is the Only Protein Source Ingested,it