
Microbiology: A Laboratory Manual (11th Edition)
11th Edition
ISBN: 9780134098630
Author: James G. Cappuccino, Chad T. Welsh
Publisher: PEARSON
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Chapter 13, Problem 52E.1RQ
Summary Introduction
To differentiate: Constitutive enzyme and inducible enzyme.
Introduction: Enzymes are biologically active substances that are produced by almost all living organisms. Microbes such as bacteria, actinomycetes, and
Expert Solution & Answer

Explanation of Solution
Constitutive enzymes are enzymes that are present always in the cell, despite their needs. Some examples are glycolytic and gluconeogenic enzymes. Inducible enzymes are the ones that are synthesized only when the substrate is available to carry out the reaction. Some examples are β-galactosidase enzymes.
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Chapter 13 Solutions
Microbiology: A Laboratory Manual (11th Edition)
Ch. 13 - Prob. 52E.1RQCh. 13 - Explain what is meant by an operon.
Ch. 13 - Explain the purpose of the ONPG in the procedure.
Ch. 13 - Compare and contrast the methods for DNA transfer...Ch. 13 - Prob. 52E.5RQCh. 13 - Explain how genetic variations may be introduced...Ch. 13 - Prob. 53E.2RQCh. 13 - Distinguish between F+ and Hfr bacterial strains.
Ch. 13 - Explain the importance of the streptomycin marker...Ch. 13 - What mechanisms are responsible for antibiotic...
Ch. 13 - Why is it necessary to use an antibiotic...Ch. 13 - Why has there been an increase in drug-resistant...Ch. 13 - Does the streptomycin in the medium cause the...Ch. 13 - Prob. 55E.1RQCh. 13 - What is the purpose of the biotin–histidine...Ch. 13 - What is the relationship between chemical...Ch. 13 - Prob. 55E.4RQCh. 13 - Prob. 55E.5RQ
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