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- Which test tube is the control group? Test tube 1: 5 Hydrogen peroxide only Test tube 2: 5 Hydrogen peroxide and ground potato Test tube 3: 5 Hydrogen peroxide and diced potato Test tube 4: 5 Hydrogen peroxide And boiled potatoWhy is it the answer in number 1 are test tubes 1 and 3Place 3 mL of egg albumin solution in each of the two test tubes. To one test tubes add 5 drops of mercuric chloride and to another test tubes add 5 drops of silver nitrate. Does precipitate form? Add excess reagent and note whether the precipitate is increased or dissolved. Describe the results.
- has been testing many observations is incorrectWhich of the following assay tests shows a positive result if there is a color change from blue to purple?a. Benedict's testb. Biuret testc. Iodine testd. Ninhydrin teste. All of the aboveWhich of the following are sterile and which are not: benchtop test-tube rack hands and fingers air in the microbiology lab inner surfaces of uninoculated test tubes notebook amd lab manuals clothing flame loop outer surfsces of uninoculated test tube Tongues pens and pencils inner surface of your nose and resident nose globins Secondly, how could you tell if your E. Coil slant was contaminated by M. Luteus?
- A 7 year old female patient is admitted to a local hospital for a greenstick radius break. The break is repaired, the patient is sent home and receives a cast a few days later. The patient arrives back at the hospital 20 days afterwards complaining of pain, sweeling under the cast. Upon removal of the cast, there is notable swelling, pus, and a furuncle. a. what type of specimen should you collect? b. What type of instant test would you perform? c. if your clinic ran out of the instant tests, what lower cost method would you use to identify the species? d. What would be the typical course of treatment? e. Due to some cases of antibiotic resistant infections at the same hospital, the doctors want to use a specimen and test for antibiotic resistence, What test would you perform, and which antibiotics should the doctor avoid prescribing?(Please insert a photo of your cross-streaking for individual colonies and describe your results) Note: Swab from the mouth, specifically the cheek Write about size, shape, type etc.While conducting the Hydrogen Sulfide Test you open up one of the tubes and it gives off a rotten egg smell while another tube you cultured does not. What does the smell indicate? How come there was no change in color in the tube that indicated a positive test? Explain how the color change is to occur. Think critically.