What is a limiting amino acid in a protein?
a. A nonessential amino acid present in high amounts, which inhibits protein synthesis
b. An amino acid of the wrong structure to be utilized for protein synthesis efficiently
c. An essential amino acid present in insufficient quantity for body protein synthesis to take place
d. An amino acid that limits the absorption of other essential amino acids by competing with them for transport sites within the GI tract
e. An amino acid that has the paradoxical effect of causing catabolism
Question 2
If the diet is lacking an essential amino acid, what will be the likely course of action?
a. Body cells will synthesize it.
b. Protein synthesis will be limited.
c. Health will not be affected as long as other nutrients are adequate.
d. Proteins will be made but they will lack that particular amino acid.
e. Massive muscle wasting will occur.
Protein–protein interaction
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