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 3, Problem 15Q
We know that bacteria/archaea and their genetics are clearly influenced by their environment since they have developed membranes and structures that allow them to live in a wide variety of conditions. Do you think the environment in which they live has likewise experienced change due to their presence? Can you cite any examples?
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Your friend Jim Crackcorn has developed a new antibiotic that damages the integrity of the cell wall by breaking down peptidoglycan. Jim tells you that he predicts that gram positive bacteria, gram negative bacteria and archaeal cells will be equally sensitive to this antibiotic. Do you agree with Jim’s prediction? If you agree, explain in your own words why you agree. If you disagree, explain in your own words what you would predict and why.
Why were Archaea originally thought to be simply unusual forms of Bacteria? What lines of evidence showed this domain to form a distinct branch on the tree of life?
Both bacteria and archaea used to be known as prokaryotes. True or false?
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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- Which of the following consist of prokaryotic cells? a. bacteria and fungi b. archaea and fungi c. protists and animals d. bacteria and archaeaarrow_forwardWhy do microbiologists believe that the Archaea were the type of microbes from which all other life descended?arrow_forwardIf you visit a lake in the middle of the Amazon and take water samples to analyze under a microscope from a nearby university that has good instrumentation and there you detect microorganisms that are not visible to the naked eye. What studies would you do to determine if they are bacteria, archaea, fungi or protozoa? Explain each type of analysis and how would you rule out members of each group? Write at least 3 paragraphsarrow_forward
- Archaea are most closely related to which of the following major groups on the tree of life? a. Bacteria b. Eucarya c. Plantae d. None of the abovearrow_forwardA biologist is studying an organism that is single-celled. With only this information, we know that the organism could be only a microbial eukaryote. a bacterium, archaean, or microbial eukaryote. a bacterium or an archaean. only an archaean. only a bacterium.arrow_forwardExplain the statement that both types, bacteria and archaea, have the same basic structures, but built from different chemical components.arrow_forward
- Bacteria evolved independently of archaea and eukaryotes, suggesting that ______________and_______________ are more closely relatedarrow_forwardWhy are bacteria and archaea classified into different domainsarrow_forwardArchaea have plasma membranes but lack cell walls. have plasma membranes, and most have cell walls. have double plasma membranes and no cell walls. have neither plasma membranes nor cell walls. lack plasma membranes, but most have cell walls.arrow_forward
- Which of the following archaea would most likely be found coexisting with bacteria?a) Nanoarchaeum b) Halobacterium c) Methanococcusd) Picrophilus e) Sulfolobusarrow_forwardA scientist isolates a new species of prokaryote. He notes that the specimen is a bacillus with a lipid bilayer and cell wall that stains positive for peptidoglycan. Its circular chromosome replicates from a single origin of replication. Is the specimen most likely an Archaea, a Gram-positive bacterium, or a Gram-negative bacterium? How do you know?arrow_forwardThere are three main ways that bacteria and archaea are essential to eukaryotic life. Explain the three different ways and give at least one example of each.arrow_forward
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