Microbiology in Industrial Production and Public Health
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Questions and Answers

What is the role of a Public Health Microbiologist?

  • To study the life cycle of parasites
  • To examine the life cycle of microorganisms
  • To use microorganisms in the industry/commercial enterprises
  • To track, control, and prevent communicable diseases and other health hazards (correct)
  • What is the function of some microbes in industrial production?

  • To study the life cycle of parasites
  • To produce oxygen through photosynthesis
  • To decompose industrial wastes (correct)
  • To cause problems for people with weak immune systems
  • What is the role of Biotechnology?

  • To track, control, and prevent communicable diseases
  • To study the life cycle of parasites
  • To examine the life cycle of microorganisms
  • To use microorganisms in the industry/commercial enterprises (correct)
  • What is the process by which some microbes produce oxygen?

    <p>Photosynthesis</p> Signup and view all the answers

    What is the role of Clinical Microbiology?

    <p>To track the epidemiology, transmission of pathogens, disease-prevention measures, treatment of infectious diseases, and production of vaccines</p> Signup and view all the answers

    What is the term for the microorganisms that live in and on the human body?

    <p>Indigenous microflora or indigenous microbiota</p> Signup and view all the answers

    What is the term for the use of microorganisms to clean up environmental wastes?

    <p>Bioremediation</p> Signup and view all the answers

    Which microbe is known to often cause infections in humans?

    <p>Pseudomonas aeruginosa</p> Signup and view all the answers

    What is a characteristic that distinguishes protists from fungi, animals, and plants?

    <p>They are eukaryotes</p> Signup and view all the answers

    What is the estimated number of protist species that have yet to be identified?

    <p>Between 60,000 and 200,000</p> Signup and view all the answers

    How are protozoa classified taxonomically?

    <p>By their mode of locomotion</p> Signup and view all the answers

    What is a common feature of protists' environments?

    <p>They are found in almost any environment that contains liquid water</p> Signup and view all the answers

    What is the range of protist sizes?

    <p>From tiny and unicellular to large and multicellular</p> Signup and view all the answers

    What is a characteristic that protists do not have?

    <p>They have highly specialized tissues or organs</p> Signup and view all the answers

    What is the primary target of β-lactams in the cell?

    <p>Cell wall</p> Signup and view all the answers

    Which class of antibiotics targets the 30S subunit of ribosomes?

    <p>Aminoglycosides</p> Signup and view all the answers

    What is the mechanism of action of Cefalexin?

    <p>Inhibition of cell wall formation</p> Signup and view all the answers

    Which generation of cephalosporins does Ceftriaxone belong to?

    <p>3rd generation</p> Signup and view all the answers

    What is the target of Polymyxin B in the cell?

    <p>Plasma membrane</p> Signup and view all the answers

    Which class of antibiotics is Daptomycin an example of?

    <p>Lipopeptide</p> Signup and view all the answers

    What is the primary target of Glycopeptides in the cell?

    <p>Cell wall</p> Signup and view all the answers

    Which generation of cephalosporins does Cefepime belong to?

    <p>4th generation</p> Signup and view all the answers

    What is the mechanism of action of macrolides?

    <p>Inhibit protein synthesis</p> Signup and view all the answers

    What type of drugs are fluoroquinolones?

    <p>Bactericidal drugs that inhibit DNA synthesis</p> Signup and view all the answers

    What is the purpose of using multi-drug therapy?

    <p>To kill all the pathogens</p> Signup and view all the answers

    What is the characteristic of cephalosporin?

    <p>It is bactericidal and interferes with cell wall synthesis</p> Signup and view all the answers

    What is the characteristic of vancomycin-resistant Enterococcus spp.?

    <p>They are resistant to most anti-enterococcal drugs, including vancomycin</p> Signup and view all the answers

    What is the mechanism of action of penicillin?

    <p>Interfere with cell wall synthesis</p> Signup and view all the answers

    What is the treatment for Mycobacterium tuberculosis?

    <p>Two or more drugs may be used simultaneously</p> Signup and view all the answers

    What type of drug is azithromycin?

    <p>Macrolide</p> Signup and view all the answers

    What is the approximate percentage of water in the cytoplasm of a cell?

    <p>70-80%</p> Signup and view all the answers

    What is the primary function of slime layers in bacteria?

    <p>To protect the bacteria from loss of water and nutrients</p> Signup and view all the answers

    What is the term for the highly organized polysaccharides that are part of the glycocalyx?

    <p>Capsules</p> Signup and view all the answers

    What is the composition of ribosomes?

    <p>Tiny particles composed of RNA and protein</p> Signup and view all the answers

    What is the purpose of inclusions in bacteria?

    <p>To store nutrients</p> Signup and view all the answers

    What is the term for the gelatinous solution that fills the entire cell?

    <p>Cytoplasm</p> Signup and view all the answers

    What is the name of the vaccine that is related to the capsular type of Haemophilus influenzae?

    <p>Hib vaccine</p> Signup and view all the answers

    What is the term for the loose shield that protects some bacteria from environmental dangers?

    <p>Slime layers</p> Signup and view all the answers

    Study Notes

    Microorganisms and Human Health

    • Living microorganisms are present in and out of the human body, known as indigenous microflora or indigenous microbiota.
    • Opportunistic pathogens can cause problems for people with weak immune systems or when they gain access to a part of the human body where they do not belong.
    • Microorganisms are essential for life, and some microbes produce oxygen through photosynthesis.
    • Some microbes are capable of decomposing industrial wastes, such as Pseudomonas aeruginosa.

    Microbiology and Biotechnology

    • Biotechnology involves the use of microorganisms in industry and commercial enterprises.
    • Bioremediation is the use of microorganisms to clean up environmental wastes.
    • Clinical Microbiology involves epidemiology, transmission of pathogens, disease-prevention measures, treatment of infectious diseases, and production of vaccines.

    Cell Structure and Function

    • Cytoplasm is a water-based solution filling the entire cell, composed of 70-80% water and larger, discrete cell masses.
    • Ribosomes are tiny particles composed of RNA and protein, responsible for protein synthesis.
    • Capsules are highly organized polysaccharides that provide protection to the bacteria cell.
    • Slime layers are a loose shield that protects some bacteria from loss of water and nutrients.
    • Inclusions are stored nutrients such as fat, phosphate, or glycogen deposited in dense crystals or particles.

    Kingdom Protista

    • Protists are eukaryotes that are not fungi, animals, or plants.
    • They can be tiny and unicellular, like an amoeba, or large and multicellular, like seaweed.
    • There are between 60,000 and 200,000 protist species, and many have yet to be identified.

    Antimicrobial Agents

    • β-lactams include penicillin, cephalosporins, monobactams, and carbapenems.
    • Glycopeptides include vancomycin.
    • Bacitracin is a polypeptide antibiotic.
    • Cefalexin, Cefazolin, and Cefradine are 1st generation cephalosporins.
    • Cefaclor, Cefprozil, and Cefuroxime are 2nd generation cephalosporins.
    • Cefdinir, Ceftriaxone, and Ceftazidime are 3rd generation cephalosporins.
    • Cefepime and Cefpirome are 4th generation cephalosporins.
    • Ceftobiprole and Ceftaroline are 5th generation cephalosporins.
    • Macrolides include erythromycin, clarithromycin, and azithromycin.
    • Fluoroquinolones include ciprofloxacin.
    • Multi-drug therapy involves using two or more drugs simultaneously to kill all the pathogens.

    Resistance and Infections

    • Vancomycin-resistant Enterococcus spp. (VRE) are resistant to most anti-enterococcal drugs, including vancomycin.
    • Synercid and Zyvox are used to treat VRE infections.
    • Isoniazid, rifampin, pyrazinamide, and ethambutol are used to treat Mycobacterium tuberculosis infections.

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    Description

    This quiz covers the role of microorganisms in industrial production and their impact on public health, including the role of microbiologists in tracking and controlling communicable diseases.

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