1 What is the purpose of Transport Media? Group of answer choices prevent normal flora from overgowing pathogens in tratsit How does an obligate aerobe microorganism grow? capnophilic ally aerobically aerobically or anaerobically anaerobically Which are Fung? Molds and Yeast Which agar plates are selected for urine C
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Step 1: Question: What is the purpose of Transport Media? Answer: Prevent normal flora from overgrowing pathogens during transit (in transit, to allow pathogen recovery). Show more…
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1. Agar media can be enriched with blood for the identification of: - Viruses from other microorganisms - Bacteria which can grow in anaerobic conditions - Bacteria which can grow in higher hydrostatic pressure - Bacteria which can cause hemolysis 2. Isolation of pure culture refers to: - Growing microorganisms on a surface - Separation of a single colony - Introduction of inoculum - Purification of culture 3. A rapid qualitative isolation method involving spreading a loopful of inoculum over the surface of an agar plate is known as: - Stabbing - Identification - Streaking - Isolation 4. A subculture is a: - Culture made from a contaminant - Culture made in an embryo - Culture made from an isolated colony - Colony growing beneath the media surface 5. Which of the following methods can be used to determine the number of bacteria quantitatively? - Streak-plate - Pour plate - Pour-plate and spread plate - Spread-plate 6. Addition of blood to culture medium only allows the hemolytic bacteria that grow on a plate to be picked out. This is an example of: - Selective media - Differential media - Chemically defined media - Complex media 7. Elective media facilitate the growth of only one kind of organism. Sabouraud medium is used to selectively isolate: - Acid-fast organisms - Gram-positive bacteria - Coliform bacteria - Yeasts 8. In the pour-plate method, the medium should be maintained at what temperature? - 45 degrees C - 0 degrees C - 37 degrees C - 67 degrees C 9. The term that refers to the purposeful addition of microorganisms into a laboratory nutrient medium known as: - Contamination - Disinfection - Inoculation - Isolation 10. Which of the following refers to specific procedures used to prevent unwanted microorganisms from contaminating the clinical specimen? - Inoculation - Disinfection technique - Aseptic technique - Needle technique 11. Bacteria that require special growth factors and complex organic substances are called: - Pathogenic - Aerobic - Chemoheterotroph - Anaerobic - Fastidious 12. A microbiology student notices that a culture broth tube was very turbid at the bottom of the tube but clear at the top of the tube. It can be concluded that the: - Organism should be grown in an anaerobic chamber - Organisms are aerobes - Organism can tolerate oxygen - Broth is sterile - Organism cannot produce superoxide dismutase and/or catalase 13. A characteristic of agar is: - It solidifies at 42 degrees C - A common source of nitrogen in liquid media - A polymer extracted from algae that has no nutritional value - It is solid at room temperature 14. Advantage of an agar slant preparation is: - Microbes can slide on agar easily - Less agar powder is needed - More surface area for growth of microbes 15. Which of the following instruments or equipment is used for sterilizing the media after it has been prepared? - Laminar air flow chamber - Inoculating needle - Incubator - Autoclave 16. A culture medium consisting of agar, human/sheep blood, and beef heart is a: - Complex media - Selective media - Reducing media - Chemically defined media - Differential media 17. What is the application of selective medium? - It allows growth of all the microbes inoculated to it - It allows the growth of one species of microorganisms while suppressing the growth of others - It does not allow the growth of any kind of microbes
Alexander B.
Selective media … Group of answer choices Support the growth of all microbes that can be grown under axenic conditions Include phenol red as part of their composition Contain 5% erythrocytes (Red Blood Cells, or RBCs) Suppress the growth of unwanted microbes and encourage the growth of desired microbes
Aparna S.
Yujie W.
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