Microbiology: An Introduction
12th Edition
ISBN: 9780321929150
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 10, Problem 6MCQ
The wall-less mycoplasmas are considered to be related to gram-positive bacteria. Which of the following would provide the most compelling evidence for this?
- a. They share common rRNA sequences.
- b. Some gram-positive bacteria and some mycoplasmas produce catalase.
- c. Both groups are prokaryotic.
- d. Some gram-positive bacteria and some mycoplasmas have coccus-shaped cells.
- e. Both groups contain human pathogens.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Which of the following best describes the mechanism of action of the antibiotic streptomycin?
A. it disrupts protein synthesis in resistant bacteria.
B. Streptomycin inhibits cell wall synthesis in all bacterial species.
C. Streptomycin creates mutations in bacteria which cause them to become resistant.
D. It disrupts protein synthesis in nonresistant bacteria.
e. coli is commonly found in the human Microbiome. while most strains are harmless some can cause various illnesses ranging from urinary track infections to severe gastroenteritis. which of the following is a primary mechanism by which e. coli obtains its pathogenicity?
A. Vertical gene transfer from parent to offspring
B. Endosymbiosis with other bacteria
C. Mutation in the bacterial chromosome
D. Horizontal gene transfer from other Bacteria or the environment
Bacillus thuringiensis makes toxins that kill insects. These toxins must be applied several times during the growth season to prevent insect damage. As an alternative to repeated applications, one strategy is to apply bacteria directly to leaves.However,B. thuringiensis does not survive very long in thefield. Other bacteria, such as Pseudomonas syringae, do survive.Propose a way to alter P. syringae so it could be used as an insecticide.Discuss advantages and disadvantages of this approach compared with the repeated applications of the toxins from B. thuringiensis.
Chapter 10 Solutions
Microbiology: An Introduction
Ch. 10 - Which of the following organisms are most closely...Ch. 10 - Here is some additional information on the...Ch. 10 - DRAW IT Use the additional information below to...Ch. 10 - DRAW IT Use the information in the table below to...Ch. 10 - NAME IT Use the key in the Applications of...Ch. 10 - Sergeys Manual of Systematic Bactenoiogy differs...Ch. 10 - Bacillus and Lactobacillus are not in the same...Ch. 10 - Prob. 3MCQCh. 10 - Which of the following is false about scientific...Ch. 10 - You could identify an unknown bacterium by all of...
Ch. 10 - The wall-less mycoplasmas are considered to be...Ch. 10 - Use the following choices to answer questions 7...Ch. 10 - Prob. 8MCQCh. 10 - Prob. 9MCQCh. 10 - Use the following choices to answer questions 9...Ch. 10 - The GC content of Micrococcus is 66-75 moles %,...Ch. 10 - Describe the use of a DNA probe and PCR for: a....Ch. 10 - SF medium is a selective medium, developed in the...Ch. 10 - Prob. 1CAECh. 10 - Prob. 2CAECh. 10 - Prob. 3CAE
Additional Science Textbook Solutions
Find more solutions based on key concepts
On what molecule does the anticodon appear? Explain the role of this molecule in protein synthesis.
Human Physiology: An Integrated Approach (7th Edition)
11. In the early 1800s, French naturalist Jean Baptiste Lamarck suggested that the best explanation for the rel...
Campbell Biology: Concepts & Connections (8th Edition)
Identify me theme or themes exemplified by (a) the sharp quills of a porcupine (b) the development of a multice...
Campbell Biology in Focus
Describe the evolution of mammals, tracing their synapsid lineage from early amniote ancestors to true mammals....
Loose Leaf For Integrated Principles Of Zoology
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- According to Philip Bell’s viral eukaryogenesis hypothesis, genes for the glycolytic pathway, theKrebs cycle, electron transport, and oxidative phosphorylation were all provided by:A. an endosymbiotic gram-negative eubacteriumB. an endosymbiotic archaeobacteriumC. a gram-positive eubacterial host cellD. a double-stranded DNA virusE. an archaeobacterial host cellarrow_forwardSome strains of Escherichia coli bacteria have acquired the ability to produce the harmful Shiga toxin, normally produced by Shigella dysenteriae. Which statements best explain why this occurs? Mark all that apply. A. conjugation between two different species of bacteria allowed both strains of bacteria to express a virulence factor B. transformation resulted in expression of a virulence factor C. horizontal gene transfer between different species of bacteria D. transduction of a specific gene resulted in expression of new traitsarrow_forwardWhich of the following is a structure that is not involved in conjugation in bacteria? A. sex pili B. mating bridge C. conjugative pili D. flagellumarrow_forward
- Bacteria that live in the digestive systems of cows help break down the plants that cows eat, providing nutrients to cows. The digestive systems of cows offer a safe environment in which the bacteria can live and reproduce. Which type of realationship exist between the bacteria and the cows?arrow_forwardIn 1928, Sir Alexander Fleming was studying Staphylococcus bacteria growing in culture dishes. He noticed that a mold called Penicillium was also growing in some of the dishes. A clear area existed around the mold because all the bacteria that had grown in this area had died. In the culture dishes without the mold, no clear areas were present. Fleming hypothesized that the mold must be producing a chemical that killed the bacteria. He decided to isolate this substance and test it to see if it would kill bacteria. Fleming transferred the mold to a nutrient broth solution. This solution contained all the materials the mold needed to grow. After the mold grew, he removed it from the nutrient broth. Fleming then added the nutrient broth in which the mold had grown to a culture of bacteria. He observed that the bacteria died which was later used to develop antibiotics used to treat a variety of diseases. (Biology Corner) 1. What was the initial observation Fleming made? 2. What was…arrow_forwardChoose the one answer that fits best. Which of the following statements regarding bacteria is NOT correct? a. During conjugation, two bacteria exchange genetic information directly via pili b. Bacterial populations have a higher mutation rate because their DNA Polymerases do not have proofreading capability c. Bacterial growth by binary fission is exponential and each division usually takes only a couple of hour or less d. Plasmids carry just a few genes and are replicated independently from the bacterial chromosome e. Cocci that are arranged in clusters/bunches are called staphylococciarrow_forward
- The antibiotic kanamycin binds to the small ribosomal subunit of bacteria and interferes with protein synthesis, and the diphtheria toxin binds to the eukaryotic elongation factor EF2 and prevents translocation of the ribosome during protein synthesis. Suppose that an archaeobacterial infection is detected in a person. Could kanamycin and diphtheria toxin be used for treatment of the infection? Why?arrow_forwardWhat happens when T2 phages are grown with radioactive phosphorus? a. Their DNA becomes radioactive. b. Their proteins become radioactive. c. Their DNA is found to be medium density in a centrifuge tube. d. They are no longer able to transform bacterial cells. e. They transfer their radioactivity to E. coli chromosomes during infection. ...Explain your answer.arrow_forwardEnumerate examples and the molecular basis behind these diseases. give what is askarrow_forward
- Which of the following is NOT a method by which bacteria can be resistant to antibiotics? Select one: a. Utilise an alternate pathway of gene expression that is not targeted by the antibiotic. b. Alter the binding site of the antibiotic, to either prevent it binding, or remove it from the site. c. Production of enzymes that bind to and break down the specific antibiotic. d. Production of a cell membrane pump that translocates antibiotics outside the cell. A potential side effect of antibiotic use is a secondary bacterial or fungal infection, usually associated with regions like the skin, upper-respiratory tract or genitalia. What is the most likely reason for the formation of these secondary infections? Select one: a. Antibiotics do not work on viruses, so they are able to establish infections in these locations. b. Organisms that are antibiotic resistant are usually more virulent, meaning they can survive and cause infection. c. The antibiotic kills off normal flora, providing an…arrow_forwardJohn Smith is a pig farmer. For the past five years, Smith has been adding vitamins and low doses of antibiotics to his pig food; he says that these supplements enhance the growth of the pigs. Within the past year, however, several of his pigs died from infections of common bacteria, which failed to respond to large doses of antibiotics. Can you explain the increased rate of mortality due to infection in Smith’s pigs? What advice might you offer Smith to prevent this problem in the future?arrow_forwardIf a viral host cell has a mutation that interferes with the addition of carbohydrates to proteins (glycoproteins) during processing in the Golgi apparatus, which of the following processes is most likely to occur? O A. Viruses released by that host cell would have a decreased ability to infect cells than the virus that originally infected the cell. B. The virus-encoded protease would be unable to cleave large viral proteins into smaller, functional polypeptides. OC. The virus would be unable to replicate within the host cell. D. Viruses released by that cell are novel and would result in infections with higher mortality rates.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
Bacterial Structure and Functions; Author: Osmosis;https://www.youtube.com/watch?v=b15Hy3jCPDs;License: Standard youtube license