Microbiology Fundamentals: A Clinical Approach
3rd Edition
ISBN: 9781260163698
Author: Cowan
Publisher: MCG
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Chapter 3, Problem 4Q
Summary Introduction
Introduction:
A Danish physician “Hans Christian Gram” developed a technique of staining that determines two groups of bacteria that differ from each other. Gram-positive and Gram-negative bacteria differ due to the differences in the peptidoglycan layer of the cell envelope. Cell envelope is composed of two or three layers that are cell membrane, cell wall, and outer membrane (in some bacteria).
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Overview of Transformation Protocol
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Chapter 3 Solutions
Microbiology Fundamentals: A Clinical Approach
Ch. 3.1 - List the structures all bacteria possess.Ch. 3.1 - Identify three structures some but not all...Ch. 3.1 - Describe three major shapes of bacteria.Ch. 3.1 - Provide at least four terms to describe bacterial...Ch. 3.2 - Describe the structure and function of six...Ch. 3.2 - Prob. 6AYPCh. 3.2 - Q. Device-associated infections are very common...Ch. 3.3 - Differentiate between the two main types of...Ch. 3.3 - Prob. 8AYPCh. 3.3 - Prob. 9AYP
Ch. 3.3 - Prob. 2MMCh. 3.4 - Identify seven structures that may be contained in...Ch. 3.4 - Prob. 11AYPCh. 3.4 - Prob. 1NPCh. 3.5 - Compare and contrast the major features of...Ch. 3.6 - Differentiate between Bergeys Manual of Systematic...Ch. 3.6 - Name four divisions ending in cutes and describe...Ch. 3.6 - Define a species in terms of bacteria.Ch. 3 - Archaea a. are most genetically related to...Ch. 3 - Prob. 2QCh. 3 - Suppose an argument in your city has erupted about...Ch. 3 - Prob. 4QCh. 3 - As a supervisor in the infection control unit, you...Ch. 3 - Prob. 6QCh. 3 - Prob. 7QCh. 3 - Prob. 8QCh. 3 - Bacteria and archaea have a much greater diversity...Ch. 3 - Prob. 10QCh. 3 - Bacteria have been found to change the structures...Ch. 3 - Bacterial and archaeal chromosomes are not...Ch. 3 - Prob. 13QCh. 3 - The results of your patients wound culture just...Ch. 3 - We know that bacteria/archaea and their genetics...Ch. 3 - Find the true statement about biofilms. a. They...Ch. 3 - Suggest more than one reason why bacteria may...Ch. 3 - Construct arguments agreeing with and refuting...Ch. 3 - Which of the following would be used to identify...Ch. 3 - During the cold war between the Soviet Union and...Ch. 3 - During the cold war between the Soviet Union and...Ch. 3 - From chapter 2, figure 2.18. Explain why some...
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- You will use the following scenario to answer a group of 5 questions. You have isolated a microbe from an environmental sample. The microbe has the ability to perform a new metabolic reaction at a very low temperature, so you are excited that it could be a new species. You have already cultured it and gone through the plate isolation procedure. Before you ship your samples off for sequencing, you want to do one final check of the A260 ratios. You get back the following ratios: A260/280 ratio is 1.89; A260/230 is 2.01. These ratios are close enough to the accepted "pure" values so they could be considered "pure" and mostly (if not completely) free of contaminants from the PCR process. True Falsearrow_forwardYou will use the following scenario to answer a group of 5 questions. You have isolated a microbe from an environmental sample. The microbe has the ability to perform a new metabolic reaction at a very low temperature, so you are excited that it could be a new species. After receiving your sequence back from the sequencing lab, you feel that you have, in fact, discovered and isolated a new species. You ask a fellow labmate about how you should proceed, and he tells you the following is the proper way to introduce a new species for recognition: Cultures have to be sent to international culture collections. Then a paper must be published describing the new organism and providing a genus and species name. You recall learning about this in your Microbiology course in college. Is this information from your colleague true or false? True Falsearrow_forwardis often a good indication of phylogenetic relatedness in phenotypes. Life-cycle patterns Cleavage patterns O Gene expression O Morphological similarityarrow_forward
- Which of the following is a weakness of using 16S rRNA for phylogenetic analyses? It can only go down to the family and genus levels It takes months to complete O Both of the above O None of the abovearrow_forwardAn unrooted tree containing ten unrelated species can become rooted by adding a descendant group related to two of the species. an unrelated outgroup. O a distantly related outgroup. O a descendant related to only one of the species.arrow_forwardWhat is the most appropriate purpose of building a phylogenetic tree? They look awesome You can use a tree to compare morphological characteristics of organisms It can be used to establish and analyze evolutionary relationships between species All of the abovearrow_forward
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