Microbiology: A Systems Approach
5th Edition
ISBN: 9781259706615
Author: Marjorie Kelly Cowan Professor
Publisher: McGraw-Hill Education
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Chapter 24, Problem 8MCQ
Summary Introduction
Introduction:
The organisms that are too small to see from naked eyes are microorganisms. All the archaea and bacteria are under the category of microorganisms, while some of the eukaryotes can be termed as microorganisms.
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An example of bioremediation is
A) the use of prokaryotes to treat sewage or clean up oil spills.
B) the production of antibiotics by cultured prokaryotes.
C) the application of bacteria to produce transgenic plants.
Why is overuse of antibiotics resulting in more antibiotic-resistant strains of bacteria to evolve?
A) The normal flora of the patient can no longer to outcompete the pathogen
B) The antibiotics create the mutations that result in resistant organisms
C) The antibiotic becomes less potent over time leading to resistance
D) The patients begin to have less side-effects from the antibiotics
E) The antibiotics provide the selective pressure for resistance
Which of the following is not part of Koch’s Postulates?
a. A specific microorganism must be present in a disease
b. The organism must be isolated into pure culture
c. Living organisms spring forth from non-living materials
d. All of the choices are part of Koch’s Postulates
Chapter 24 Solutions
Microbiology: A Systems Approach
Ch. 24.1 - Define microbial ecology.Ch. 24.1 - Summarize why our view of the abundance of...Ch. 24.1 - Prob. 3AYPCh. 24.1 - Prob. 4AYPCh. 24.1 - Prob. 5AYPCh. 24.2 - List five important elements of biogeochemical...Ch. 24.2 - Diagram a carbon cycle.Ch. 24.2 - Prob. 8AYPCh. 24.2 - Prob. 9AYPCh. 24.2 - Describe the process of nitrogen fixation, and...
Ch. 24.2 - Prob. 11AYPCh. 24.3 - Prob. 12AYPCh. 24.3 - Prob. 13AYPCh. 24.3 - Prob. 14AYPCh. 24.3 - Prob. 15AYPCh. 24.3 - Prob. 16AYPCh. 24.3 - Prob. 17AYPCh. 24.4 - Prob. 18AYPCh. 24.4 - Prob. 19AYPCh. 24 - Which of the following is not a major subdivision...Ch. 24 - Prob. 2MCQCh. 24 - Prob. 3MCQCh. 24 - Prob. 4MCQCh. 24 - Root nodules contain ______, which can ________....Ch. 24 - Prob. 6MCQCh. 24 - Prob. 7MCQCh. 24 - Prob. 8MCQCh. 24 - Prob. 9MCQCh. 24 - Recent studies reveal that a. 100% of...Ch. 24 - Prob. 11TFCh. 24 - Prob. 12TFCh. 24 - Prob. 13TFCh. 24 - A plastisphere is a specialized ball used when...Ch. 24 - Prob. 15TFCh. 24 - Prob. 1CTQCh. 24 - a. Outline the general characteristics of a...Ch. 24 - Summarize the role microbes play in the cycling of...Ch. 24 - Many people use animal manure to fertilize their...Ch. 24 - PCBs are human-made pollutants that are not...Ch. 24 - Prob. 1VCCh. 24 - From chapter 8, figure 8.24. What process does...Ch. 24 - Prob. 1CM
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- Which of the following events is NOT a common among microbes in the air? A. Exposure to UV light. B. Relocated due to updrafts. C. Cellular death due to desiccation. D. Decrease is population due to competition.arrow_forwardBioremediation includes _____. a. the use of prokaryotes that can fix nitrogen b. the use of prokaryotes to clean up pollutants c. the use of prokaryotes as natural fertilizers d. All of the abovearrow_forwardWhat is the relationship between normal flora Escherichia coli (E. coli) and STEC? A When normal flora E.coli divide in two, they sometimes turn into STEC. B Everyone is colonized by STEC but only some people have non-STEC microbes in the large intestine. C Normal flora E.coli do not make Shiga toxin, but STEC are E. coli that do make Shiga toxin.arrow_forward
- 7. What is bioremediation? Group of answer choices a.the use of bacteria to clean stuff up b.the use of bacteria to make clothes c.the use of bacteria to make medicinearrow_forwardSome bacteria have the ability to “fix” nitrogen. This means a. they convert ammonia into nitrites and nitrates. b. they convert atmospheric nitrogen gas into biologically useful forms of nitrogen. c. they break down nitrogen-rich compounds and release ammonium ions. d. they convert nitrate into nitrogen gas.arrow_forwardWhich of these statements is true? a. An antibiotic is any substance produced by a organism that is antagonistic to the growth of prokaryotes. b. An antibiotic is any substance produced by a prokaryote that is antagonistic to the growth of other viruses. c. An antibiotic is any substance produced by a prokaryote that is antagonistic to the growth of eukaryotic cells. d. An antibiotic is any substance produced by a prokaryote that prevents growth of the same prokaryote.arrow_forward
- How does the emergence of endosymbiotic theory change the way humans view microorganisms? Will people be comfortable imagining that the life functions of plants and animals, including their own, are actually dependent on the coexistence of many different microscopic pieces? This question is not answered yetarrow_forwardHow do scientists induce prokaryotes to produce human proteins?a. They insert human genes into bacterial genomes.b. They cross bacterial strains until the proteins arise at random.c. They inject bacteria into human muscles.d. All of the above are correct.arrow_forwardNew cells generate from(a) bacterial fermentation (b) regeneration of old cells (c) pre-existing cells (d) abiotic materialsarrow_forward
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