Prescott's Microbiology
10th Edition
ISBN: 9781259281594
Author: Joanne Willey, Linda Sherwood Adjunt Professor Lecturer, Christopher J. Woolverton Professor
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
thumb_up100%
Chapter 7, Problem 5CHI
Consider cell-cell communication: bacteria that “subvert” and “cheat” have been described. Describe a situation in which it would be advantageous for one species to subvert another, that is, degrade an intercellular signal made by another species. Also, describe a scenario whereby bacterial cheaters—defined as bacteria that do not make a molecular signal but profit by the uptake and processing of signal made by another microbe—might have a growth advantage.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
This is from micro biology. Which box goes under which category
Why might bacteria use quorum sensing to regulate genes needed for virulence? How might this reason be related to the rationale behind using quorum sensing to establish a symbiotic relationship?
Gold nanoparticles are applied in cancer therapy; approaches such as photothermal therapy as well
as photothermal sensitization have been described. Which of the following statements is correct,
mark all that apply:
Photothermal therapy and sensitization are the same thing and the terms are used interchangeably
Photothermal sensitization also leads to cancer cell death by heat but uses a more sensitive light source
Photothermal therapy refers to the process of killing cancer cells by heat
Photothermal sensitization weakens cancer cells and hence makes them more susceptible to other treatment
regimens, e.g. chemotherapy
Chapter 7 Solutions
Prescott's Microbiology
Ch. 7.1 - MICRO INQUIRY In addition to chromosomes, what...Ch. 7.2 - MICRO INQUIRY Why is it important that the origin...Ch. 7.2 - MICRO INQUIRY What would be the outcome if FtsZ...Ch. 7.2 - MICRO INQUIRY Which step in the development of...Ch. 7.2 - Retrieve, Infer, Apply 1. Describe the three...Ch. 7.2 - Retrieve, Infer, Apply 2. How does the bacterial...Ch. 7.2 - Retrieve, Infer, Apply 3. Do you think MinCDE...Ch. 7.2 - Retrieve, Infer, Apply 4. Do you think Spiroplasma...Ch. 7.3 - What elements of the Sulfolobus spp. cell cycle...Ch. 7.3 - Many archaea have genes encoding an FtsZ...
Ch. 7.4 - What is the difference between halophilic and...Ch. 7.4 - Why do facultative anaerobes grow best at the...Ch. 7.4 - Retrieve, Infer, Apply 1. How do microorganisms...Ch. 7.4 - Retrieve, Infer, Apply 2. Define water activity...Ch. 7.4 - What are halophiles and why do Halobacterium spp....Ch. 7.4 - Retrieve, Infer, Apply 1. Define pH, acidophile,...Ch. 7.4 - Retrieve, Infer, Apply Classify each of the...Ch. 7.4 - Retrieve, Infer, Apply 3. Describe the mechanisms...Ch. 7.4 - Retrieve, Infer, Apply 1. What are cardinal...Ch. 7.4 - Prob. 3.2RIACh. 7.4 - Define psychrophile, psychrotolerant, mesophile,...Ch. 7.4 - Retrieve, Infer, Apply What metabolic and...Ch. 7.4 - Retrieve, Infer, Apply Describe the five types of...Ch. 7.4 - Retrieve, Infer, Apply What are the toxic effects...Ch. 7.4 - Retrieve, Infer, Apply Where would you expect to...Ch. 7.4 - Retrieve, Infer, Apply List the types of...Ch. 7.4 - Prob. 5.3RIACh. 7.4 - Prob. 5.4RIACh. 7.5 - MICRO INQUIRY What biomolecules make up the...Ch. 7.5 - Prob. 1RIACh. 7.5 - Prob. 2RIACh. 7.5 - Retrieve, Infer, Apply What is quorum sensing?...Ch. 7.5 - Retrieve, Infer, Apply How is the communication...Ch. 7.6 - Prob. 1RIACh. 7.6 - What are peptones, yeast extract, beef extract,...Ch. 7.6 - Retrieve, Infer, Apply Describe four ways in which...Ch. 7.6 - What are pure cultures and why are they important?...Ch. 7.6 - Retrieve, Infer, Apply It is known that microbial...Ch. 7.6 - Retrieve, Infer, Apply How might an enrichment...Ch. 7.7 - MICRO INQUIRY Identify the regions of the growth...Ch. 7.7 - Retrieve, Infer, Apply Define microbial growth.Ch. 7.7 - Retrieve, Infer, Apply Describe the phases of the...Ch. 7.7 - Why would cells that are vigorously growing when...Ch. 7.7 - Retrieve, Infer, Apply Contrast and compare the...Ch. 7.7 - Calculate the growth rate constant and generation...Ch. 7.7 - Suppose the generation time of a bacterium is 90...Ch. 7.8 - Why is it important to have no more than about 250...Ch. 7.8 - Briefly describe each technique by which microbial...Ch. 7.8 - Prob. 2RIACh. 7.8 - Prob. 3RIACh. 7.8 - For each of the following, which enumeration...Ch. 7.9 - Prob. 1MICh. 7.9 - Prob. 1RIACh. 7.9 - Prob. 2RIACh. 7.9 - Prob. 3RIACh. 7 - As an alternative to diffusible signals, suggest...Ch. 7 - If you wished to obtain a pure culture of bacteria...Ch. 7 - Design an experiment to determine if a...Ch. 7 - Suggest one specific mechanism underlying the...Ch. 7 - Consider cell-cell communication: bacteria that...Ch. 7 - Suppose you discovered a new bacterial strain from...Ch. 7 - Because many persistent bacterial infections...
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
- The most selectively toxic antibacterial agents are those that interfere with bacterial cell wall synthesis. This is because ________. Group of answer choices bacterial cell wall synthesis is easily inhibited whereas eukaryotic cell wall synthesis is more resistant to the actions of the drugs bacterial cell walls have a unique structure not found in eukaryotic host cells eukaryotic cells do not take up the drugs eukaryotic cells inactivate the drugs before they can do any damagearrow_forwardWhy might clinical medicine have an interest in understanding bacterial cell division at the molecular level? Explain why a hyperthermophile would probably not be a human pathogen. Describe four factors that may have an influence on the effectiveness of an antimicrobial treatment. Explain why 70% or 80% alcohol is more effective than 100% alcohol in controlling microorganisms.arrow_forwardMammalian cell cultures often are used for experimentation. The cell culture medium typically is supplemented with penicillin to prevent bacterial contamination of the cell line. However, researchers know that this antibiotic will not prevent Mycoplasma growth. Explain why penicillin does not protect the culture from Mycoplasma contamination.arrow_forward
- This is a drawing of a Giardia cell. It has flagella, two nuclei and vacuoles. flagella vacuoles nuclei What effect would the following inhibitors have on this organism? A microfilament inhibitor would... A microtubule inhibiotor would... stop cell motility have no effect on cell motilityarrow_forwardDescribe methods that a cell may use to adapt to heavy metal contaminated sites. Define halophile. What is a compatible solute? What are they used for?Describe the industrial uses of Dunaliella?Describe what issues cell harvesting presents on an industrial scale.Explain what stress proteins are and how they are related to the ability of cells to live in extreme environments.arrow_forwardIn general, why might cell-wall inhibiting antimicrobial drugs be less effective on gram-negative bacteria compared to gram-positive bacteria? The gram-negative bacteria digest these drugs at a much higher rate than gram-positive bacteria. The mutation rate of gram-negative bacteria is much greater than that of gram-positive bacteria. The outer membrane of the gram-negative bacteria inhibits penetration of the drug. The peptidoglycan found in gram-positive bacteria is structurally different from that in gram-negative bacteria. The gram-negative bacteria do not synthesize peptidoglycan.arrow_forward
- The pathway shown below is used by a fungus to create Arginine from a precursor starter molecule. A nonsense mutation occurs in the gene that encodes enzyme 2. This fungus is grown on media that only contains the precursor. Discuss the effects of this mutation on:(i) The function of Enzyme 2 (ii) The potential of the fungus to produce Ornithinearrow_forwardIn what situation would the VBNC occurrence benefit cells? How could this pose a public health threat?arrow_forwarddescribe the molecular switches involved in microbial stationary growth phase. give one research article linkarrow_forward
- Which of the following does NOT describe a mechanism of antibiotic resistance among bacteria? enzymes to hydrolyze or chemically alter the antibiotics mutations in target molecules so that antibiotics can no longer bind efflux pumps cell wall diffusion barrier, e.g. Gram-negative outer membrane, Acid Fast cell wall of Mycobacterium O increased synthesis of porins to increase antibiotic diffusion across membranesarrow_forwardBacterial growth depends on many environmental factors, including the temperature of the environment. Since microbes can survive in a certain range of temperatures and will thrive at a temperature, understanding these variables allows for control of their growth. This understanding can be used, for example, to preserve certain foods or to treat infections. This lab simulation will use an instrument called a spectrophotometer. This instrument quantitatively measures the amount of light that is absorbed or transmitted by molecules in solution a) In your own words give an introduction to the microbial growth and the effect tempature has. b) In your own words explain the importance of the spectrophotometer in regards to microbial growth. c) In your own words give a hypothesis on how bacteria will react to different temperatures.arrow_forwardA microbe that is completely dependent on host cells for processes like transcription and translation” would describe which of the following? Select one: a. An intracellular protist parasite. b. A virus. c. A commensal bacterium. d. An intracellular bacterial pathogen. poiling yourself, you decide to eat at a fancy fish restaurant. One type of fish must be prepared carefully to remove a toxin that can cause paralysis. What type of channel is the toxin likely to affect? Select one: a. Voltage. b. Terminal. c. Mechanical. d. Positive.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Animal Communication | Ecology & Environment | Biology | FuseSchool; Author: FuseSchool - Global Education;https://www.youtube.com/watch?v=LsMbn3b1Bis;License: Standard Youtube License