Microbiology Fundamentals: A Clinical Approach
3rd Edition
ISBN: 9781259709227
Author: Marjorie Kelly Cowan Professor, Heidi Smith
Publisher: McGraw-Hill Education
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Chapter 21, Problem 2Q
Some of the E. coli strains that are normal biota in the GI tract have evolved adhesive structures that can attach to the urinary tract, and cause disease there. What sequence of molecular events (in the bacteria) do you suppose led to this?
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Chapter 21 Solutions
Microbiology Fundamentals: A Clinical Approach
Ch. 21.1 - Prob. 1AYPCh. 21.1 - Prob. 2AYPCh. 21.2 - Prob. 3AYPCh. 21.3 - List the possible causative agents, modes of...Ch. 21.3 - Discuss important features of leptospirosis.Ch. 21.3 - Prob. 1NPCh. 21.3 - Medical Moment Cranberry versus UTI It has long...Ch. 21.4 - List the possible causative agents, modes of...Ch. 21.4 - Prob. 7AYPCh. 21.4 - Prob. 8AYP
Ch. 21.4 - Prob. 9AYPCh. 21.4 - Prob. 10AYPCh. 21.4 - Prob. 11AYPCh. 21.4 - Prob. 12AYPCh. 21.4 - Prob. 2NPCh. 21.4 - Prob. 3NPCh. 21.4 - Prob. 2MMCh. 21 - Prob. 1QCh. 21 - Some of the E. coli strains that are normal biota...Ch. 21 - Many STIs are asymptomatic, or remain latent for...Ch. 21 - Prob. 4QCh. 21 - Three microorganisms in this chapter can be...Ch. 21 - Prob. 6QCh. 21 - Prob. 7QCh. 21 - Prob. 8QCh. 21 - Prob. 9QCh. 21 - Prob. 10QCh. 21 - Prob. 11QCh. 21 - Prob. 12QCh. 21 - Prob. 13QCh. 21 - Prob. 14QCh. 21 - Prob. 15QCh. 21 - Prob. 16QCh. 21 - Prob. 17QCh. 21 - Prob. 18QCh. 21 - Prob. 19QCh. 21 - Prob. 20QCh. 21 - Prob. 21QCh. 21 - Prob. 1VC
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- What are the primary proteolytic enzymes used to degrade immunoglobulin molecules into definable fragments to facilitate the study of their structure? Beside each peptide bond-splitting enzyme, indicate the number of fragments they produce after digestion.arrow_forwardAn E. coli colony grew on minimal medium supplemented with arginine and leucine. However, bacteria from this colony are unable to grow and form colonies on minimal medium supplemented with arginine and methionine. What is the genotype of the bacteria in this E. coli colony?arrow_forwardHow would cellulose-degrading bacteria in the rumen of a cow benefit the animal?arrow_forward
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- When a test tube of bacteria is treated with penicillin and left for two days, the bacteria were found to still be growing and the a changed form of penicillin is found inside of the bacterial cells. What mechanism of antibiotic resistance is likely to have occurred?arrow_forwardEach species of bacteria has its own distinctive cell surface. Thecharacteristics of the cell surface play an important role in processessuch as conjugation and transduction. For example, certainstrains of E. coli have pili on their cell surface. These pili enableE. coli to conjugate with other E. coli and also enable certain bacteriophages (such as M13) to bind to the surface of the E. coli andgain entry into the cytoplasm. With these ideas in mind, explainwhich forms of genetic transfer (i.e., conjugation, transduction,and transformation) are more likely to occur between different speciesof bacteria. Discuss some of the potential consequences ofinterspecies genetic transfer.arrow_forwardYou have isolated a strain of E.coli that is resistant to penicillin,streptomycin,chloramphenicol and tetracycline. You also observe that when you mix this strain with a strain that is sensitive to all four antibiotics, the new strain becomes resistant to streptomycin,penicillin and chloramphenicol but not tetracycline. Explain how this is so?arrow_forward
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