В С The results of growth on urea slant agar are shown above. The cultures are as follows: (A) B. subtilis, (B) E. aerogenes and (C) uninoculated control. Based on the results, B. subtilis contains the enzyme urease. True False LLL 21E BIdroetcur
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- Please answer it correctly for an Upvote. Thank you. •Explain why cfu/unit analyzed is being used to express the microbial load of samples acquired using the pour and spread plate procedures.Please help me to find positive or negative results for the Oxidase lab test for microbiology, recognize the species and explain the reason behind the result.INSTRUCTIONS: Please do not copy here in Bartleby or in Google. QUESTIONS : 1. Aside from using the autoclave, what are other ways to kill microorganisms from glassware that can be use in the laboratory?
- Date Sheet Extraction ODD EVEN ODD EVEN GROUP Single Extraction 1 Single Extraction 2 Multiple Extraction 1 Multiple Extraction 2 Weight of tea leaves 10.002 (g) 10.123 (g) 10.013 (g) 10.007 (g) Weight of evaporating dish + caffeine 123.689 (g) 124.334 (g) 121.815 (g) 126.523 (g) Weight of empty evaporating dish 123.513 (g) 124.147 (g) 121.614 (g) 126.246 (g) Weight of caffeine 1. Identify the two layers in the procedure. In which part does caffeine can be extracted? 2. The partition coefficient K for a compound between dichloromethane and water is determined to be 56 : 1 (K=56). If 10.0 mg of the compound is dissolved in 50.0 mL of water and this solution extracted with 25.0 mL of dichloromethane, how many mg of the compound will remain in the water layer following the extraction procedure? Show you calculationsINSTRUCTIONS: Please do not copy here in Bartleby or in Google. QUESTIONS : 1. Why is it importance to heat the lid of the petri pate where you will grow the microorganism? Explain.Prove if the statement is TRUE or False with complete solution. At a dilution factor of, UHT-pasteurized milk sample X yielded the following bacterial colony counts when spread-plated in quadruplicates: 23, 20, 35, and 41 CFU/plate. As a result, the milk sample will pass laboratory standards if the total microbial limit is set to "not to exceed 30,000 CFU/mL of milk sample."
- DILUTION COLONY COUNT CFU/mL 1:106 155000 1:107 15500 1:108 1550 1:109 155 Given these values how would I fill in the rest of this serial dilution table? Also, what would be a 1:1 CFU/mL value based on this table?please give complete table solution i will thumbs up surelyDate Sheet Extraction ODD EVEN ODD EVEN GROUP Single Extraction 1 Single Extraction 2 Multiple Extraction 1 Multiple Extraction 2 Weight of tea leaves 10.002 (g) 10.123 (g) 10.013 (g) 10.007 (g) Weight of evaporating dish + caffeine 123.689 (g) 124.334 (g) 121.815 (g) 126.523 (g) Weight of empty evaporating dish 123.513 (g) 124.147 (g) 121.614 (g) 126.246 (g) Weight of caffeine Post Lab Questions Explain the principles involved in extraction. What other organic compounds can be extracted from tea bags? Draw their structures and briefly mention their biological function/s. Why do you need to add sodium carbonate in the extraction process?