10 Which of the following statements about enzymatic catalysis is not true?a. Enzymes are able to provide different solvent environments at the active site.O b. Enzymes allow one group to exist in its acidic form while a nearby group can exist in its basic form.O C. Solvent pH is unimportant in enzymatic reactions.d. A pH-rate profile plots enzyme activity versus pH.O e. Enzyme activity depends on the reaction mixture pH. A decapeptide was analyzed and the following information obtained. Determine the primary structure of the peptide.Edman's Degradation: PTH-AlaTrypsin produces 3 peptides of the following composition1. Gly, His2. Ala, Leu, Lys, Val3. Arg (2), Phe, ProChymotrypsin produces 2 peptides of the following composition:1. Ala, Leu, Lys, Phe, Val2. Arg (2), Gly, His, ProElastase produces 1 amino acids and 3 peptides1. Ala2. Leu, Val3. Arg (2), Lys, Phe, Pro, Gly, His-O-C-CAlaArgHsLysPhe PioVal

Enzymes are defined as complex compounds containing nitrogen. Catalysis is defined as a phenomenon…

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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

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Transcribed Image Text:Which of the following statements about enzymatic catalysis is not true? a. Enzymes are able to provide different solvent environments at the active site. O b. Enzymes allow one group to exist in its acidic form while a nearby group can exist in its basic form. O C. Solvent pH is unimportant in enzymatic reactions. d. A pH-rate profile plots enzyme activity versus pH. O e. Enzyme activity depends on the reaction mixture pH.

A decapeptide was analyzed and the following information obtained. Determine the primary structure of the peptide.
Edman's Degradation: PTH-Ala
Trypsin produces 3 peptides of the following composition
1. Gly, His
2. Ala, Leu, Lys, Val
3. Arg (2), Phe, Pro
Chymotrypsin produces 2 peptides of the following composition:
1. Ala, Leu, Lys, Phe, Val
2. Arg (2), Gly, His, Pro
Elastase produces 1 amino acids and 3 peptides
1. Ala
2. Leu, Val
3. Arg (2), Lys, Phe, Pro, Gly, His
-O-C-C
Ala
Arg
Hs
Lys
Phe Pio
Val

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