Brock Biology of Microorganisms - MasteringBiology With eText - Access
15th Edition
ISBN: 9780134602288
Author: MADIGAN
Publisher: PEARSON
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Chapter 7.10, Problem 1CR
Summary Introduction
Ribosomes of bacteria are a major target site for antibiotics. These drugs inhibit the function of ribosomes by interfering with the translation of messenger RNA or by blocking the peptide bond formation. Thus inhibits the process of protein synthesis. Most of the antibiotics act by targeting the protein synthesis, which is an essential process for bacterial growth.
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Antibiotics that target the cell wall have no effect on the existing peptidoglycan. So how does the antibiotic affect bacterial cells so that the cell walls become weak and the cell lyses?
What part of a eukaryotic cell could be affected by antibiotics that target ribosomes and why?
Most medically useful antibiotics interfere with either peptidogly¬can synthesis or ribosome function. Why would the cytoplasmic membrane be a poor target for antibacterial medications?
Chapter 7 Solutions
Brock Biology of Microorganisms - MasteringBiology With eText - Access
Ch. 7.1 - What is the utility of a reporter gene?Ch. 7.1 - Prob. 2MQCh. 7.1 - Prob. 1CRCh. 7.2 - Prob. 1MQCh. 7.2 - Prob. 2MQCh. 7.2 - Prob. 1CRCh. 7.3 - What is the divisome?Ch. 7.3 - How does FtsZ find the cell midpoint of a...Ch. 7.3 - What is the role of the penicillin-binding protein...Ch. 7.4 - How does MreB control the shape of a rod-shaped...
Ch. 7.4 - What protein is thought to control the shape of...Ch. 7.4 - What relationships exist between cytoskeletal...Ch. 7.4 - What morphology do cells have that lack MreB or...Ch. 7.5 - Prob. 1MQCh. 7.5 - What is transpeptidation and why is it important...Ch. 7.5 - Prob. 1CRCh. 7.6 - How are different sets of genes expressed in the...Ch. 7.6 - Prob. 2MQCh. 7.6 - Prob. 1CRCh. 7.7 - Why are the levels of DnaA protein controlled...Ch. 7.7 - Prob. 2MQCh. 7.7 - Prob. 1CRCh. 7.8 - Prob. 1MQCh. 7.8 - What is the major transcriptional regulator that...Ch. 7.8 - What is meant by "patterning" during heterocyst...Ch. 7.9 - What are the four basic stages of biofilm...Ch. 7.9 - Besides autoinducer synthesis, what intracellular...Ch. 7.9 - What type of genes does c-di-GMP activate during...Ch. 7.10 - Describe two targets of antibiotics and discuss...Ch. 7.10 - Prob. 2MQCh. 7.10 - Prob. 3MQCh. 7.10 - Prob. 1CRCh. 7.11 - Is persistence a heritable trait?Ch. 7.11 - What prevents the toxin component of TA modules...Ch. 7.11 - Prob. 3MQCh. 7.11 - Prob. 1CRCh. 7 - If DnaA was not regulated in Escherichia coli and...Ch. 7 - Explain how cells exhibiting different phenotypes...Ch. 7 - Describe how you would genetically design a...
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- There are many antibiotics that target the bacterial cell wall, but there are few antibiotics that target the cell membrane. Why might this be so?arrow_forwardHow would cellulose-degrading bacteria in the rumen of a cow benefit the animal?arrow_forwardWhy can bacterial ribosomes be targeted by antibiotics?a) Because they are different from eukaryotic ribosomesb) Because eukaryotes don't have ribosomesc) Because they are identical to eukaryotic ribosomes explain answerarrow_forward
- Why do bacteria have flagella?arrow_forwardMost medically useful antibiotics interfere with either peptidoglycan synthesis or ribosome function. Why would the cell membrane be a poor target for antimicrobial medication?arrow_forwardWhat part or parts of the bacterial cell do antibiotics target? Why?arrow_forward
- Why must viruses be metastable?arrow_forwardHow can treatments for treacher Collins Syndrome help ribosomes do their normal job?arrow_forwardThe majority of antibiotics used in the clinic aremade as natural products by bacteria. Why do you supposebacteria make the very agents we use to kill them?arrow_forward
- why are bacteria considered living organisms, while viruses are usually considered non living?arrow_forwardLysozyme and the antibiotic penicillin have similar mechanisms of action in that they both cause damage to the bacterial: Question 5 options: A) cell membrane. B) capsule. C) cell wall. D) DNA.arrow_forwardLysozyme does which of the following?a) Disrupts cell membranesb) Hydrolyzes peptidoglycanc) Waterproofs skind) Propels gastrointestinal contentse) Propels the cilia of the respiratory tractarrow_forward
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