Homework Help is Here – Start Your Trial Now!
Science
Biochemistry
Shown below is a theoretical titration curve of histidine (amino acid). Use the provided titration curve in answering the questions asked. Hd 14 12 10 8 6 4 2 0 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 Volume of Titrant / mL Histidine 0.10 mol/L - titrant = NaOH 0.1 mol/L 1. Which of the following forms of Histidine is/are amphoteric? (More than one answer may apply) a. Hist b. His c. His2+ d. His 5. What is the charge of the most protonated form of histidine? a. 0 b. +1 C. +2 d. +3 e. +4

Shown below is a theoretical titration curve of histidine (amino acid). Use the provided titration curve in answering the questions asked. Hd 14 12 10 8 6 4 2 0 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 Volume of Titrant / mL Histidine 0.10 mol/L - titrant = NaOH 0.1 mol/L 1. Which of the following forms of Histidine is/are amphoteric? (More than one answer may apply) a. Hist b. His c. His2+ d. His 5. What is the charge of the most protonated form of histidine? a. 0 b. +1 C. +2 d. +3 e. +4

Biochemistry
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Question
Shown below is a theoretical titration curve of histidine (amino acid). Use the provided titration curve in answering the questions asked. Hd 14 12 10 8 6 4 2 0 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 Volume of Titrant / mL Histidine 0.10 mol/L - titrant = NaOH 0.1 mol/L 1. Which of the following forms of Histidine is/are amphoteric? (More than one answer may apply) a. Hist b. His c. His2+ d. Hiso 2. According to the titration curve above, what is the isoelectric point of histidine? Make sure to place your answer up until the first decimal point. 3. Which form of histidine is the most abundant at pH 10.0? a. Hist b. His c. His2+ d. His c. His2+ d. Hisº 4. Which form of histidine is the most abundant at pH 7.0? a. Hist b. His 5. What is the charge of the most protonated form of histidine? a. 0 b. +1 C. +2 d. +3 e. +4 6. In the titration curve of the amino acid above, how many buffering regions are present? 7. True or False: All amino acids have zwitterions
Transcribed Image Text:Shown below is a theoretical titration curve of histidine (amino acid). Use the provided titration curve in answering the questions asked. Hd 14 12 10 8 6 4 2 0 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 Volume of Titrant / mL Histidine 0.10 mol/L - titrant = NaOH 0.1 mol/L 1. Which of the following forms of Histidine is/are amphoteric? (More than one answer may apply) a. Hist b. His c. His2+ d. Hiso 2. According to the titration curve above, what is the isoelectric point of histidine? Make sure to place your answer up until the first decimal point. 3. Which form of histidine is the most abundant at pH 10.0? a. Hist b. His c. His2+ d. His c. His2+ d. Hisº 4. Which form of histidine is the most abundant at pH 7.0? a. Hist b. His 5. What is the charge of the most protonated form of histidine? a. 0 b. +1 C. +2 d. +3 e. +4 6. In the titration curve of the amino acid above, how many buffering regions are present? 7. True or False: All amino acids have zwitterions
Expert Solution
steps

Step by step

Solved in 5 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Biochemistry
Biochemistry
Biochemistry
ISBN:
9781319114671
Author:
Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:
W. H. Freeman
Lehninger Principles of Biochemistry
Lehninger Principles of Biochemistry
Biochemistry
ISBN:
9781464126116
Author:
David L. Nelson, Michael M. Cox
Publisher:
W. H. Freeman
Fundamentals of Biochemistry: Life at the Molecul…
Fundamentals of Biochemistry: Life at the Molecul…
Biochemistry
ISBN:
9781118918401
Author:
Donald Voet, Judith G. Voet, Charlotte W. Pratt
Publisher:
WILEY
Biochemistry
Biochemistry
Biochemistry
ISBN:
9781305961135
Author:
Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal
Publisher:
Cengage Learning
Biochemistry
Biochemistry
Biochemistry
ISBN:
9781305577206
Author:
Reginald H. Garrett, Charles M. Grisham
Publisher:
Cengage Learning
Fundamentals of General, Organic, and Biological …
Fundamentals of General, Organic, and Biological …
Biochemistry
ISBN:
9780134015187
Author:
John E. McMurry, David S. Ballantine, Carl A. Hoeger, Virginia E. Peterson
Publisher:
PEARSON
SEE MORE TEXTBOOKS