Podcast
Questions and Answers
What is the role of a Public Health Microbiologist?
What is the role of a Public Health Microbiologist?
What is the function of some microbes in industrial production?
What is the function of some microbes in industrial production?
What is the role of Biotechnology?
What is the role of Biotechnology?
What is the process by which some microbes produce oxygen?
What is the process by which some microbes produce oxygen?
Signup and view all the answers
What is the role of Clinical Microbiology?
What is the role of Clinical Microbiology?
Signup and view all the answers
What is the term for the microorganisms that live in and on the human body?
What is the term for the microorganisms that live in and on the human body?
Signup and view all the answers
What is the term for the use of microorganisms to clean up environmental wastes?
What is the term for the use of microorganisms to clean up environmental wastes?
Signup and view all the answers
Which microbe is known to often cause infections in humans?
Which microbe is known to often cause infections in humans?
Signup and view all the answers
What is a characteristic that distinguishes protists from fungi, animals, and plants?
What is a characteristic that distinguishes protists from fungi, animals, and plants?
Signup and view all the answers
What is the estimated number of protist species that have yet to be identified?
What is the estimated number of protist species that have yet to be identified?
Signup and view all the answers
How are protozoa classified taxonomically?
How are protozoa classified taxonomically?
Signup and view all the answers
What is a common feature of protists' environments?
What is a common feature of protists' environments?
Signup and view all the answers
What is the range of protist sizes?
What is the range of protist sizes?
Signup and view all the answers
What is a characteristic that protists do not have?
What is a characteristic that protists do not have?
Signup and view all the answers
What is the primary target of β-lactams in the cell?
What is the primary target of β-lactams in the cell?
Signup and view all the answers
Which class of antibiotics targets the 30S subunit of ribosomes?
Which class of antibiotics targets the 30S subunit of ribosomes?
Signup and view all the answers
What is the mechanism of action of Cefalexin?
What is the mechanism of action of Cefalexin?
Signup and view all the answers
Which generation of cephalosporins does Ceftriaxone belong to?
Which generation of cephalosporins does Ceftriaxone belong to?
Signup and view all the answers
What is the target of Polymyxin B in the cell?
What is the target of Polymyxin B in the cell?
Signup and view all the answers
Which class of antibiotics is Daptomycin an example of?
Which class of antibiotics is Daptomycin an example of?
Signup and view all the answers
What is the primary target of Glycopeptides in the cell?
What is the primary target of Glycopeptides in the cell?
Signup and view all the answers
Which generation of cephalosporins does Cefepime belong to?
Which generation of cephalosporins does Cefepime belong to?
Signup and view all the answers
What is the mechanism of action of macrolides?
What is the mechanism of action of macrolides?
Signup and view all the answers
What type of drugs are fluoroquinolones?
What type of drugs are fluoroquinolones?
Signup and view all the answers
What is the purpose of using multi-drug therapy?
What is the purpose of using multi-drug therapy?
Signup and view all the answers
What is the characteristic of cephalosporin?
What is the characteristic of cephalosporin?
Signup and view all the answers
What is the characteristic of vancomycin-resistant Enterococcus spp.?
What is the characteristic of vancomycin-resistant Enterococcus spp.?
Signup and view all the answers
What is the mechanism of action of penicillin?
What is the mechanism of action of penicillin?
Signup and view all the answers
What is the treatment for Mycobacterium tuberculosis?
What is the treatment for Mycobacterium tuberculosis?
Signup and view all the answers
What type of drug is azithromycin?
What type of drug is azithromycin?
Signup and view all the answers
What is the approximate percentage of water in the cytoplasm of a cell?
What is the approximate percentage of water in the cytoplasm of a cell?
Signup and view all the answers
What is the primary function of slime layers in bacteria?
What is the primary function of slime layers in bacteria?
Signup and view all the answers
What is the term for the highly organized polysaccharides that are part of the glycocalyx?
What is the term for the highly organized polysaccharides that are part of the glycocalyx?
Signup and view all the answers
What is the composition of ribosomes?
What is the composition of ribosomes?
Signup and view all the answers
What is the purpose of inclusions in bacteria?
What is the purpose of inclusions in bacteria?
Signup and view all the answers
What is the term for the gelatinous solution that fills the entire cell?
What is the term for the gelatinous solution that fills the entire cell?
Signup and view all the answers
What is the name of the vaccine that is related to the capsular type of Haemophilus influenzae?
What is the name of the vaccine that is related to the capsular type of Haemophilus influenzae?
Signup and view all the answers
What is the term for the loose shield that protects some bacteria from environmental dangers?
What is the term for the loose shield that protects some bacteria from environmental dangers?
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.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
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.