Of what practical importance are air borne microorganisms to the laboratory workers? What precautions should be taken to control laboratory contaminants? Why are petri dishes incubated in an inverted position? Of what advantage is the using a solid and a liquid medium?
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Of what practical importance are air borne microorganisms to the laboratory workers?
What precautions should be taken to control laboratory contaminants?
Why are petri dishes incubated in an inverted position?
Of what advantage is the using a solid and a liquid medium?
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- Idenitfy the statements whether they are TRUE or FALSE 1. You should use P-20 micropipettes to transfer volumes for spread plating. 2. You should use P-200 micropipettes to transfer volumes for pour plating.Match the description to the correct medium This medium is enrichment for fastidious [Choose ] bacterial pathogens and differential based on hemolysis [Choose ] This medium is selective based on Tryptic Soy Agar, TSA salt/sodium chloride tolerance at 7.5 % Sabouraud Dextrose Agar, "Sab" agar weight/volume and differential based on mannitol fermentation Mannitol Salt Agar, "MSA" MacConkey Agar, "Mac" agar This medium is selective based on the ability to grow in bile salts and crystal violet and is EMB Eosin Methylene Blue Agar differetial based on lactose fermentation Blood Agar, "BA" this medium is all purpose and can grow a [Choose ] wide range of bacteria and fungiGive the uses/functions and images of each apparatuses. Basic Laboratory Equipment Uses/Functions Picture 1. Microscope 2. Colony Counter 3. Autoclave 4. Microbiology incubator 5. Drying oven 6. Refrigerator (microbiology) 7. Bunsen burner/alcohol lamp 8. Candle jar 9. Anaerobic jar 10. Microhood or Bacteriologic hood/Safety hood/Safety cabinet 11. Bacteriologic filters (Seitz, Chamberlain, Berkfield) 12. Petri dish 13. Culture tubes 14. Hanging drop slide 15. Durham’s tube 16. Staining rack 17. Thermostatically controlled water bath 18. Inoculating loop 19. Inoculating needle 20. Vials
- indicators, key used for/ determines reagents, or key positive result ingredients 1. crystal violet Comments/ additional info Medium/test negative result decolorization is key. Must include +/- controls on gram reaction and size and 2. iodine morfdant Gram stain stains purple stains pink 3. gram's declorizer 4. safranin shape every slide to verify result quadrant streak- isolation of pure culture of bacteria check this for any pigmentation of colonies TSA Eosin methylene blue agar (EMB) 1. sulfur/H2S 2. indole/tryptophasnase 3. motility/flagella 1. blackening of medium 2. red color in added reagent 3. fuzzy appearance of 1. no blackening of medium 2.same color of added multi test medium (3 results reagent (not red) 3. stab is visible an defined with growth 1. ferrous salts 2. Kovac's SIM in one medium) 3. low % agarose medium/stab not visible motility agar Brewer's plate in Anaerobe jar Fluid thioglycollate (FTM) Citrate slant phenol red fermentation broth test media (list the specific…G When is it appropriate for gloves X + rface/defaultui/player/modern.html?configuration=&preventRightClick=False&cc=en-US&ieCompatibilityMod... 2 Exit rientation to Infection Prevention Which of the following are proper disinfection steps? Check all the apply. O Remove organic matter O Disinfect only O Follow suggested contact time O Mix cleaning products to make the disinfectant more powerful O Disinfect O Disregard the product labels SUBMIT ENG INTRUE OR FALSE 1. The antheridium of a moss could be seen as a whole mount at 100x magnification. 2. The fine adjustment knob sharpens the image in all objectives. 3. While disinfecting the isolation room with UV light, stay inside so that your hands and clothes will also be sterilized.
- of 1 stion s page 30- F2 Which of the following terms is associated with the probability of a preparation not being sterile after it has been exposed to a sterilization process? Select one: Oa. Particulate Matter level Qb. Sterility Assurance level О с. Pyrogen Load level O d. Optimal Sterilization level F3 F4 F5 Ol پیار Q Search F6 F7 F8 F9 === 8 9 F10 Time left 22:34:03 F11 Next pageIn product testing, microbial growth is found.| Interpretation: Rationale:Give the uses/functions and images of each apparatuses. Basic Laboratory Equipment Uses/Functions Picture 1. Microscope 2. Colony Counter 3. Autoclave 4. Microbiology incubator 5. Drying oven 6. Refrigerator (microbiology) 7. Bunsen burner/alcohol lamp 8. Candle jar 9. Anaerobic jar 10. Microhood or Bacteriologic hood/Safety hood/Safety cabinet
- 困 Topic: laboratory Instrument Which of the following are TRUE regarding Which of the following is/are TRUE the use of laboratory instruments and regarding the use laboratory instruments equipment in regards to making of culture media? " and equipment? * Air bubbles on the surface of agar plates Hot plates can be used to sterilize the inoculating loop and needle. can be removed by fanning them with the luminous flame of the bunsen burner. If the agar surface is wet, it can be dried by A drying oven is used to sterilize nutrient agar, a solid culture medium. heating at 30-40 deg C in the drying oven before inoculation is done. The refrigerator is used to grow psychrophiles. All media taken from the refrigerator should be warmed to room temperature before use, P Type here to search 7:11 pm 30/09/2021 ヘロG) ENG 近Determine what percentage of the culture was living (viable) and what percentage was dead (mortality). Plates Plate Dilution Volume plated No.of colonies Avg No Concentration of diluted sample Cd(cells/mL) Concentration of original sample Cu(cells/mL) 1 10^-3 10ul R1=130,R2= 110,R3=210 150 150mL 1.50*10^6 Volume of cells(mL) Volume of diluent(mL) Total dilution(D) Hemocytometer count Avg cells in 1 mm^2 area Concentration of diluted sample Cd(cells/mL) Concentration of original sample Cu(cells/mL) 4.3 0.5 0.1 grid 1= 171 , grid2 = 185 178 1.78*10^5 1.78*10^6Please describe in detail what would be a suitable procedure should you break anErlenmeyer flask containing 50 mL of a biosafety level 2 microorganism inside amicrobiological safety cabinet.