Microbiology: An Introduction
12th Edition
ISBN: 9780321929150
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case
Publisher: PEARSON
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Chapter 1, Problem 8MCQ
Summary Introduction
Introduction:
Bioremediation is the biological process of the utilization of bacteria,
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The first step for directly linking a microbe to a specific disease according to Koch's postulates is to
A.isolate microbes from the blood of healthy animals.
B. culture the blood or other body fluid from a diseased animal using nutrient medium.
C. inject a sample of blood or other body fluid from a diseased animal into a healthy animal.
D. obtain a sample of blood or other body fluid from a diseased animal.
What is the specific mode of action and the target organisms of each of the three antibiotics used in the exercise (isolation of E. coli bacteriophage)?a. Ampicillin:b. Polymyxin:c. Streptomycin:
Technically speaking, true antibiotics are drugs…
A. Produced naturally by microbes
B. Taken orally, not injected.
C. Used to treat any microbial infection
D. Used to treat any bacterial disease.
Chapter 1 Solutions
Microbiology: An Introduction
Ch. 1 - Review 1. How did the idea of spontaneous...Ch. 1 - Briefly state the role microorganisms play in each...Ch. 1 - Into which field of microbiology would the...Ch. 1 - Match the microorganisms in column A to their...Ch. 1 - Match the people in column A to their contribution...Ch. 1 - It is possible to purchase the following...Ch. 1 - NAME IT What type of microorganism has a...Ch. 1 - DRAW IT Show where airborne microbes ended up in...Ch. 1 - Prob. 1MCQCh. 1 - Which of the following is not a characteristic of...
Ch. 1 - Which of the following is the most important...Ch. 1 - Recombinant DNA is a. DNA in bacteria. b. the...Ch. 1 - Which of the following statements is the best...Ch. 1 - Which of the following is a beneficial activity of...Ch. 1 - It has been said that bacteria are essential for...Ch. 1 - Prob. 8MCQCh. 1 - Spallanzanis conclusion about spontaneous...Ch. 1 - Which of the following statements about E. coli is...Ch. 1 - How did the theory of biogenesis lead the way for...Ch. 1 - Even though the germ theory of disease was not...Ch. 1 - Prob. 3ACh. 1 - Find at least three supermarket products made by...Ch. 1 - People once believed all microbial diseases would...Ch. 1 - Prob. 1CAECh. 1 - In 1864, Lister observed that patients recovered...
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- In polymicrobial pulmonary infection, Stenotrophomonas maltophilia secretes a compound which activates an ARG in Pseudomonas aeruginosa. This is an example of: a. Exposure protection b. Gene Mutation c. Protection mediated by interspecies communication d. Vulnerability due to cross feedingarrow_forwardThere are many bacterial-antimicrobial resistance combinations. Which one of the following is of maior international concern? a. Sulfonamide resistance in Neisseria meningitides b. Penicillin G resistance in N. gonorrhoeae C. Ampicillin resistance in H. influenza d. Erythromycin resistance in S. pyogenes (group A streptococci) e. Vancomycin resistance in S. aureusarrow_forwardDuring this outbreak, some people sickened with listeriosis testedpositive for Listeria monocytogenes in their bloodstream, but a DNAprofile of the bacterium showed that it was not the outbreak strain.What likely conclusion can be drawn from this information?a. It is a false positive. b. The person is not part of the outbreak.c. Listeria monocytogenes mutates frequently, making DNAprofiling unreliable.d. The person has already begun to recover from the disease.arrow_forward
- Microbial resistance to drugs is acquired througha. conjugation.b. transformation.c. transduction.d. all of these.arrow_forwardObserve the results from a disc-diffusion experiment below. Which antibiotic would you prescribe to a patient with a similar Staphylococci infection? The patient has no known allergies or contraindications for broad-spectrum antibiotics. Remember to use the table above to determine if the bacteria are resistant, susceptible or intermediate. a. Tetracycline b. Streptomycin c. Penicillin d. Norfloxacinarrow_forwardWhich of the following is not one of the objectives of the antibiotic resistance study? A. Distinguish between a virus and a bacteria B. Distinguish between broad spectrum and narrow spectrum antibiotics C. Distinguish between susceptibility and resistance D. Anderstand the advantages of the Kirby-Bauer method versus the Disk-Diffusion method E. All of these are objectives of the Antibiotic resistance studyarrow_forward
- The following are the limitations of Koch's postulates EXCEPT: A. some pathogens cannot grow on artificial media and therefore cannot be identified as the causative agent of the disease B. some diseases involve multiple pathogens which produce similar symptoms making it difficult to pinpoint the causative agent C. some diseases are host-specific and re-inoculation may pose ethical concerns D. some microorganisms are present in the body fluids of the infected animal which make them difficult to be culturedarrow_forwardAn elderly man with influenza acquires a case of pneumonia. Gram-positive cocci isolated from his sputum give beta-hemolysis on blood agar. The infection is very difficult to treat. Later, it is shown that the man shared the room with a patient with bone infection. Isolates from both infections were the same. a. Describe 2 biochemical tests that can be used for the definitive diagnosis. b. Describe 2 virulence factors of this pathogen and implicate them in diseases.arrow_forwardwhich of the following is not a way that normal microbial prevent growth of competing microbes? a. production of substances harmful to competitors b. more efficient utilization of nutrients c. changing pH of environment d. all of the above are used by normal microbiota against competitors e. none of the above are utilized by normal microbiotaarrow_forward
- During the anthrax crisis of 2001, public health officials urged citizens not to take the antibiotic ciprofloxacin as a preventative measure. Public health officials were concerned that overuse of ciprofloxacin would lead to resistant varieties of anthrax and other bacterial pathogens. Ciprofloxacin is one of the few readily available antibiotics that can treat anthrax. 1)Do you think that public health officials should more directly regulate the availability of ciprofloxacin to ensure its proper use? 2)Why?arrow_forwardWhich of the following is not a factor in the rise of drug-resistantAcinetobacter baumannii?a. It is very widespread in many habitats.b. It has acquired greater toxicity.c. It readily acquires genetic material from other species.d. The hospital environment brings together vulnerable patients anddrugs.arrow_forwardIn terms of microbial pathogenicity, molecular Koch's postulates are a set of experimental criteria that show: A microbe is the aetiological agent of a disease A gene encodes a product that contributes to disease A gene encodes a product that contributes to immunity to a disease A mutation does not contribute to diseasearrow_forward
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