Concerning peptidases: A Endopeptidases recognize specific amino acid sequences within the polypeptide chain. B Exopeptidases cut the side chains of amino acids starting from one of the ends of the polypeptide chain. C They are enzymes capable of hydrolysing disulfide bridges in proteins. D They hydrolyze the phosphodiester bonds of polynucleotides. E They are present in the digestive system and participate in the digestion of sugars.

Concerning peptidases: A Endopeptidases recognize specific amino acid sequences within the polypeptide chain. B Exopeptidases cut the side chains of amino acids starting from one of the ends of the polypeptide chain. C They are enzymes capable of hydrolysing disulfide bridges in proteins. D They hydrolyze the phosphodiester bonds of polynucleotides. E They are present in the digestive system and participate in the digestion of sugars.

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter4: Cells

Section: Chapter Questions

Problem 1ITD

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When performing his experiments on protein refolding, Christian Anfinsen obtained a quite different result when reduced ribonuclease was reoxidized while it was still in 8 M urea and the preparation was then dialyzed to remove the urea. Ribonuclease reoxidized in this way had only 1% of the enzymatic activity of the native protein. Why were the outcomes so different when reduced ribonuclease was reoxidized in the presence and absence of urea?
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