You have isolated the enzyme sialidase from cell lysosomal extracts. This enzyme's activity is at its highest at pH 4.7. This pH is known as the enzyme's pH optimum. You need to study the activity of the protein in the laboratory a) Which buffer system would be the best buffer for you to use to assure the protein is the most active and why? Lactic Acid (CH3CH(OH)COOH and its conjugate base) pka 3.86 Carbonic acid (H₂CO3 and its conjugate base) pka 6.35 Phosphoric acid (H3PO4 and its conjugate base) pKa 2.14 b) Draw the disassociation of the acid you choose in water (labeling the acid form and its conjugate base) and determine the ratio of each you would need for your buffer.

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
icon
Related questions
icon
Concept explainers
Question
You have isolated the enzyme sialidase from cell lysosomal extracts. This enzyme's
activity is at its highest at pH 4.7. This pH is known as the enzyme's pH optimum.
You need to study the activity of the protein in the laboratory
a) Which buffer system would be the best buffer for you to use to assure the protein
is the most active and why?
Lactic Acid (CH3CH(OH)COOH and its conjugate base) pKa 3.86
Carbonic acid (H₂CO3 and its conjugate base) pka 6.35
Phosphoric acid (H3PO4 and its conjugate base) pka 2.14
b) Draw the disassociation of the acid you choose in water (labeling the acid form and
its conjugate base) and determine the ratio of each you would need for your buffer.
Transcribed Image Text:You have isolated the enzyme sialidase from cell lysosomal extracts. This enzyme's activity is at its highest at pH 4.7. This pH is known as the enzyme's pH optimum. You need to study the activity of the protein in the laboratory a) Which buffer system would be the best buffer for you to use to assure the protein is the most active and why? Lactic Acid (CH3CH(OH)COOH and its conjugate base) pKa 3.86 Carbonic acid (H₂CO3 and its conjugate base) pka 6.35 Phosphoric acid (H3PO4 and its conjugate base) pka 2.14 b) Draw the disassociation of the acid you choose in water (labeling the acid form and its conjugate base) and determine the ratio of each you would need for your buffer.
Expert Solution
steps

Step by step

Solved in 4 steps with 5 images

Blurred answer
Knowledge Booster
Ionic Equilibrium
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY