Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Biofilms can have signifiant implications with respect to infection and effectiveness of antibiotic treatment. Write a short explanation of what is a biofilm and why they present challenges to antibiotic therapy
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- Match the early scientists with their notable discoveries: Alexander Fleming Howard Florey and Ernst Chain Selman Waksman Paul Ehrlich Choices - discovered penicllin after studying mold growth established an approach for screening potential antimicrobial compounds discovered many antimicrobials after studying soil microbes, including antinomycetes mass production of penicillin and study of its use in humansarrow_forwardBiofilm formation is known to increase the resistance of member bacteria to antibiotics. How does this happenarrow_forwardGive an example of a type of clinically relevant bacteria that are spore formers. For example what are the spore formers that cause diseases in humans?arrow_forward
- Describe the steps in biofilm formation using the words planktonic organisms, quorum, quorum sensing, extracellular polymeric substances, and inducer molecule.arrow_forwardWhich of the following is true of microbial biofilms? A. Biofilms are restricted to freshwater environments. B. Biofilms typically are small because resources such as nutrients and oxygen are unable to circulate through them. C. Cells within the biofilm are encased within a layer of polysaccharide. D. Biofilms almost always consist of only a single bacterial speciesarrow_forwarddo a bit of research to find a microbe that also has odd growth requirements (i.e. it can break down odd substances in order to meet its nutritional needs). Tell us what the microbe uses, how it accesses these nutrients (special enzymes, does it get help from other organisms, etc), as well as the potential utility of microbe to aid in Earth or human health.arrow_forward
- Antibiotics often target which components of microbial cells? Choose all that apply. Group of answer choices Cell walls Formation of a nucleus after mitosis Flagella Transcription of genes to mRNAarrow_forwardGive situations of biofilms and explain what they are.arrow_forwardDiscuss how treatments of biofilm and nonbiofilm infections differ.arrow_forward
- Since the seventies, scientists have been manipulating microorganisms to improve humans’ well-being. What are examples of how scientists use microorganisms to improve human life quality.arrow_forwardWhy would a bacteriostatic antibiotic that only INHIBITS growth of a pathogenic bacterium be useful for treating an infection? Which population should not be given bacteriostatic antibiotics?arrow_forwardBacteria talk using: vibrations detected through a liquid medium. different concentrations of the same chemical. the same chemical used to produce the matrix of a biofilm. species specific variants of a basic type of chemical (a lactone).arrow_forward
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