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29.Which amino acid is ideal for the transfer of protons within the catalytic site of enzymes due to the presence of significant amount of both the protonated and deprotonated forms of its side chain at biological pH? A. Lysine B. Asparagine C. Tyrosine D. Cysteine E. Histidine = 2.0; pka2 30. The isoelectric point of alanine is pH = 6.15. It is mixed with proline (pka1 10.6). The mixture is placed in an electric field at pH 6.15 and then subjected to isoelectric focusing. Which statement is true? A. The two amino acids will be separated B. The two amino acids will not be separated C. Neither amino acids will move in the electric field D. Both amino acids will move from the origin and separated

29.Which amino acid is ideal for the transfer of protons within the catalytic site of enzymes due to the presence of significant amount of both the protonated and deprotonated forms of its side chain at biological pH? A. Lysine B. Asparagine C. Tyrosine D. Cysteine E. Histidine = 2.0; pka2 30. The isoelectric point of alanine is pH = 6.15. It is mixed with proline (pka1 10.6). The mixture is placed in an electric field at pH 6.15 and then subjected to isoelectric focusing. Which statement is true? A. The two amino acids will be separated B. The two amino acids will not be separated C. Neither amino acids will move in the electric field D. Both amino acids will move from the origin and separated

Introduction to General, Organic and Biochemistry
Introduction to General, Organic and Biochemistry
11th Edition
ISBN:9781285869759
Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Chapter22: Proteins
Section: Chapter Questions
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29.Which amino acid is ideal for the transfer of protons within the catalytic site of enzymes due to the presence of significant amount of both the protonated and deprotonated forms of its side chain at biological pH? A. Lysine B. Asparagine C. Tyrosine D. Cysteine E. Histidine 30. The isoelectric point of alanine is pH = 6.15. It is mixed with proline (pka1 = 2.0; pka2 = 10.6). The mixture is placed in an electric field at pH 6.15 and then subjected to isoelectric focusing. Which statement is true? A. The two amino acids will be separated B. The two amino acids will not be separated C. Neither amino acids will move in the electric field D. Both amino acids will move from the origin and separated
Transcribed Image Text:29.Which amino acid is ideal for the transfer of protons within the catalytic site of enzymes due to the presence of significant amount of both the protonated and deprotonated forms of its side chain at biological pH? A. Lysine B. Asparagine C. Tyrosine D. Cysteine E. Histidine 30. The isoelectric point of alanine is pH = 6.15. It is mixed with proline (pka1 = 2.0; pka2 = 10.6). The mixture is placed in an electric field at pH 6.15 and then subjected to isoelectric focusing. Which statement is true? A. The two amino acids will be separated B. The two amino acids will not be separated C. Neither amino acids will move in the electric field D. Both amino acids will move from the origin and separated
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