Amino Acids Are the Building Blocks of Proteins

question 46

Multiple Choice

Amino acids are the building blocks of proteins.Which of the following statements concerning amino acids is FALSE?

• A)There are 20 different amino acids that occur naturally in human proteins.
• B)The amino acids that make up human proteins are called essential amino acids.
• C)The amino acids present in human proteins are "alpha" amino acids.
• D)Except for glycine,where R=H,amino acids are chiral molecules.
• E)Amino acids are classified by the nature of the side chain R groups that are present.

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