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A biological catalyst is called a(n) ________.

In the peptide Ser-Cys-Ala-Gly, the C-terminal end is ________.

A completely vegetarian diet will contain all the essential amino acids if it includes ________.

At a pH > 9, the ionized form of glycine will have ________.

The active site of an enzyme ________.

Compared to an uncatalyzed reaction, an enzyme-catalyzed reaction ________.

A chain made of more than 50 amino acids that has biological activity is referred to as a(n) ________.

In the β-pleated sheet secondary structure of a protein, two or more amino acid sequences in separate parts of the protein are held together ________.

Reasons a resident may have black colored stools include:

Which of the following would be most likely to be deficient in at least one essential amino acid?