1) would you describe the contents of the soil-inoculated broth as being a “pure culture”? Why or why not? 2) How did the uninoculated broth differ in appearance from the broths inoculated with E. Coli and M. Luteus? And then how could you tell if a supposedly sterile, uninoculated broth was contaminated? Please explain in detail and highlight the important parts cuz I am confused and need help! Thanks
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1) would you describe the contents of the soil-inoculated broth as being a “pure culture”? Why or why not?
2) How did the uninoculated broth differ in appearance from the broths inoculated with E. Coli and M. Luteus? And then how could you tell if a supposedly sterile, uninoculated broth was contaminated?
Please explain in detail and highlight the important parts cuz I am confused and need help! Thanks
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- How is it that mold appeared on my samples? (in other words where did it come from or what is the source of the mold that grows on the samples?) I had 10 bags each bag had 3 slices of apple and 3 pieces of bread, 5 bags where left in a dark warm place and 5 where left in a bright warm place. 2 bags were control bags, 2 contained the fruit/bread and 1 tsp of vinegar, 2 contained fruit/bread and 1 tsp of water, 2 contained fruit/bread and 1 tsp of lemon juice, and 2 contained fruit/bread and 1 tsp of sugar water. The fruit and bread were mixed together in the same bag.Identify the microorganism/ group of microorganisms involved in the spoilage of the following food: a. Salmon pink discoloration of sauerkraut b. Blue cottony growth on oranges c. Canned curdled evaporated milkI AM TRYING TO IDENTIFY THIS UNKNOWN. ***IMAGE 1 HAS TWO PICTURE OF CATALASE TEST AND BLOOD AGAR TEST. ***IMAGE 2 HAS THREE TESTS CONDUCTED ON IT, OXIDASE, BACITRACIN AND NOVOBIOCIN. I believe it is one of the following: 1) S. pyo. 2)S. agal . 3)S.pneu. 4)E. faecalis 5)S. aureus 6)S epi. 7)S. sapro. 8)M. luteus Please let me know which one of the above is thge unknown. You have pictures of the unkown on Catalase and Blood Agar and three test conducted on Oxidase, Bacitracin and Novobiocin. Give reasoning as why you think it will be one of the above. Explaing the characteristics and what made you deicide it?
- A 1.5-year-old child developed vomiting, diarrhea, and fever. Stool sample were inoculated into the Endo media. After 18 hours on the surface of the medium grew medium-sized, round, slightly convex red colonies with a metallic luster. The doctor suspected Escherichia coli. 1. Name the composition of the Endo agar media. 2. Describe the properties of bacterial colonies on the Endo media. 3. What purpose differential diagnostic Endo media used for?1) What are all of the different colony types that can be seen on a mixed-culture streak plate? 2) What kinds of colonies can be seen when mixed cultures of E. coli, M. luteus, and Serratia marcesens? 3) What is the range of colonies that may be seen with each mixed culture?1) based on the difference in appearance between mixed culture streak plates and broth culture plates, what would lead you to believe that you have created a pure culture when you inoculated the broths? 2) when using the loop dilution technique to produce pour plates, did all the plates produce isolated colonies? If your goal was to ultimately create pure cultures of E. coli, M. luteus, and S. morcescens, which plate or which dilution would you use, and why would you use this plate? 3) What are the advantages and disadvantages of streak plating compared with pour plating?
- I AM TRYING TO IDENTIFY THIS UNKNOWN. IMAGE 1 HAS TWO PICTURE OF CATALASE TEST AND BLOOD AGAR TEST. I believe it is one of the following: 1) S. pyo. 2)S. agal . 3)S.pneu. 4)E. faecalis 5)S. aureus 6)S epi. 7)S. sapro. 8)M. luteus Please let me know which test will i need out of the table to justify your reason of picking up the unknown and also how that test justifies it? what characteristics of that test made you pick the unknown?I. Match the bacterium being described in column X with its best classification found in column Y. Choose the best answer. Column X1. Staphylococcus aureus can be grown on mannitol salt agar that contains 7.5% NaCl. The bacterium is________. 2. Lactobacillus acidophilus grows best at pH 4.5. It is considered a(n) ________. Column Y A. acidophile B. alkalophile C. barophile 3. A bacterium that thrives in the Great Salt Lake but not in fresh water is probably a ________.4. Bacteria isolated from the bottom of the ocean need high atmospheric pressures to survive. They are________.5. A bacterium that thrives in a soda lake where the average pH is 10.5 can be classified as a(n) ________. D. halotolerant E. halophileI AM TRYING TO IDENTIFY THIS UNKNOWN. ***IMAGE 1 HAS TWO PICTURE OF CATALASE TEST AND BLOOD AGAR TEST. ***IMAGE 2 HAS TWO TESTS CONDUCTED ON IT, BACITRACIN AND PYR I believe it is one of the following: 1) S. pyo. 2)S. agal . 3)S.pneu. 4)E. faecalis 5)S. aureus 6)S epi. 7)S. sapro. 8)M. luteus Please let me know which one of the above is thge unknown. You have pictures of the unkown on Catalase and Blood Agar and three test conducted on Bacitracin and PYR. Give reasoning as why you think it will be one of the above. Explaing the characteristics and what made you deicide it?
- I need help with just the answer. please 44) Which answer is better related to coliform group? Group of answer choices five different genera of bacteria airborne diseases don't belong to the family Enterobactericeae none 43) What are the methods can be considered to be used to identify unknown bacteria in the laboratory? Group of answer choices morphology of colonies biochemical tests Stain Methods all above1. The Petri Dish method is used in microbiology to raise bacteria in: a) rapid growth b) pure culture c) septic environment d) all of the above 2. What is the difference between antiseptic and sanitization? 3. In order to prevent any kind of contamination the medium must be _________ before placing it in the Petri dish. a) lyophilized b) pasteurized c) autoclaved d) distilledDescribe characteristics of Streptococcus Agalactiae in the Agar: (How does colonies look like (color) and explain does it grow on that agar. (Don't have to write the incubation period) ~ Only describe how would it look like on the Agar: Blood Agar (Aerobic) MacConkey EMB PEA Mannitol Salt Agar Chocolate Agar Nutrient Agar