Biology: Science for Life with Physiology (6th Edition) (Belk, Border & Maier, The Biology: Science for Life Series, 5th Edition)
6th Edition
ISBN: 9780134555430
Author: Colleen Belk, Virginia Borden Maier
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Question
Chapter 12, Problem 4LTB
Summary Introduction
Antibiotics are the drugs that kill microbes including bacteria. Antibiotics are effective in controlling infections through their immune system.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Different strains of Streptococcus pyogenes have different virulence factors, giving these microbes much versatility. Virulence factors include which of the following? Choose one or more:
A.A capsule that, when thick, will help the organism avoid phagocytosis by macrophages
B.A cell wall containing lipoteichoic acid, thought to facilitate adherence to pharyngeal epithelial cells
C.Enzymes that lyse blood cells (streptolysins)
D.The production of several endotoxins called streptococcal pyogenic endotoxins (SPEs)
Using the Koch's Postulates, support the findings
that Mycobacterium tuberculosis is the causative
agent of tuberculosis. Specifically, you have to
provide brief narratives/pictures/proofs and
sources that support the postulate listed below:
The organism must be isolated from the newly
infected animals and cultured again in the
laboratory, after which it should be seen to be
the same as the original organism.
Which infection would be easier to contract from eating seafood, shigellosis or cholera? Explain.
Give typing answer with explanation and conclusion
Chapter 12 Solutions
Biology: Science for Life with Physiology (6th Edition) (Belk, Border & Maier, The Biology: Science for Life Series, 5th Edition)
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
- Although Lilly's project was focused on understanding the prevalence of resistance strains of M. tuberculosis in indigenous populations, she also knew that many patients infected with TB do not have an active disease, ie that the bacteria is latent in the infected lungs. M. tuberculosis is transmitted indirectly via air droplets that are inhaled in the large and small airways. In fact, although 30% of individuals exposed to the bacteria will develop an infection, only 5-10% will develop clinical manifestations. This means 20-25% of people exposed to the bacteria will have a latent disease. Although people with latent disease are not infectious and will not transmit the disease to other community members, latent disease is difficult to diagnose. This was really playing on Lilly's mind, thinking about the difficulty of controlling the spread of the bacteria when most infected people were asymptomatic for years and then suddenly developed active disease, which could then spread for weeks…arrow_forwardCytomegalovirus has the ability to move between adjacent cells: How does Cytomagalovirus contribute to the virulence of the pathogen?arrow_forwardWhich of the following highly contagious viruses is a single-stranded ribonucleic acid (RNA) virus with a helical capsid and envelope and is transmitted by coming in contact with respiratory secretions? "This is a highly contagious respiratory illness transmitted when an infected person coughs or sneezes virus particles into the air," the health department said in a written statement. "It's so contagious that if one person is sick and spreading measles, nine out of 10 people around them who aren't immune will get it, too." Group of answer choices a. Measles b. Parvovirus c. Coxsackie virus A d. Rhinovirusarrow_forward
- How does Mycobacterium tuberculosis gain access through that preferred portal of entry Explain how the Mycobacterium tuberculosis is able to evade innate human host defenses that prevent this from occurring. discuss specific components of your pathogen. (Examples may include capsules, cell wall components, exoenzymes, antigenic variation and penetration of the host cell cytoskeleton.)arrow_forwardBelow are a list of virulence factors/ strategies paired with an example of an organism that utilizes them. How do each of the following strategies contribute to the virulence of the pathogen? Strategy - Causes the host to produce more receptors (Organism - Rhinovirus) Strategy - Produces gas as a product of fermentation (Organism - Clostridium perfringens) Strategy - Produces a capsule (organism - Klebsiella pneumonia) Strategy - Ability to move between adjacent cells (organism - Cytomegalovirus) Strategy - Ability to use pilus as a motility structure (organism - Pseudomonas aerogenosa)arrow_forwardExplain why a tuberculin skin test on an AIDS (acquired immunodeficiencysyndrome) patient with tuberculosis may show a negative result.arrow_forward
- Imagine that a drug was discovered that is able to bind to and cut off the 5' cap of the coronavirus RNA genome once it enters the host cytoplasm. Based on this description, which of the following steps of the infection cycle would this drug directly inhibit? a) Entry b) Synthesis c) Attachment d) Release e) Assemblyarrow_forwardDoes Mycobacterium tuberculosis produce an exotoxin or endotoxin Discuss how this affects the host. This is where most of the damage is caused.explain the difference between an EXOTOXIN and an ENDOTOXIN.arrow_forwardYou are studying your favorite (hypothetical) bacteriophage named M277. It infects E. coli and stays dormant within the bacterial cell. How does a phage become dormant within a cell? Generally, describe the steps of infection by phage in this scenarioarrow_forward
- In a case study, scientists frequently infer that Malignant transformation of hymenolepis nana in human host occurred because of the patient’s HIV/AIDS status and resultant immunocompromised state. When N=1, is such an inference statistically justified? In addition to Yes or No, jot down your thoughts on the possible association between AIDS and this case.arrow_forwardMycobacterium tuberculosis recruits phagocytes to the site of infection. Based on this information, which of the three methods shown here does the bacterium likely use to avoid being destroyed?arrow_forwardAn outbreak of Ebola between 2014 and 2016 resulted in 28,616 cases and 11,310 deaths in Guinea, Liberia and Sierra Leone. An additional 36 cases and 15 deaths were reported outside these 3 countries. This deadly disease urged the need for extensive research on Ebola to better understand and treat the disease and prevent future outbreaks. Ebola is a - SSRNA virus. What does this mean for how it is converted into proteins? Does this virus require additional machinery to be infectious? Can you hypothesize based on how it replicates in the cell what scientists might hope to target for treatment or prevention of Ebola?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Bacterial Infections in Humans; Author: Professor Dave Explains;https://www.youtube.com/watch?v=FeFKAl9KyMg;License: Standard Youtube License