Multiple Choice
The ionic charges associated with a protein molecule are ________.
A) mostly contributed by the side chains of constituent amino acids
B) determined by the contribution from the α-carboxyl group,α-amino group and side chain of every amino acid in the protein
C) contributed by only the N-terminal and C-terminal residues
D) independent of the amino acid composition and depend only on pH
Correct Answer:

Verified
Correct Answer:
Verified
Q21: A polypeptide chain may have abrupt changes
Q22: Affinity chromatography can be used to save
Q23: Hydropathy is an important determination of protein-chain
Q24: Amino acids which are not incorporated into
Q25: The R group of an amino acid
Q27: Match the following to their functions.<br>-First amino
Q28: The pKa's of isoleucine's α-Carboxyl group and
Q29: Match the following to their functions.<br>-Neurotransmitter<br>A)N-formylmethionine<br>B)Histamine<br>C)S-adenosylmethionine<br>D)g-aminobutyrate<br>E)selenocysteine<br>F)epinephrine (adrenaline)
Q30: The pKa of a certain weak acid
Q31: The hydropathy of amino acids can help