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which agent was most effective against the fecal coliform that was tested?
how does this agent kill bacterial cells?
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- Gram-positive Catalase + Acid from ............................... Staphylococcus Glucose............................................... Micrococcus Catalase - Coccus................................................ Streptococcus Rod..................................................... Lactobacillus Gram-negative Oxidase - Acid from lactose Uses citric acid............................... Citrobacter Citric acid...................................... Escherichia Lactose - H2S produced Urease ........................ Proteus Urease ....................... Salmonella Oxidase + Rod..................................................... Pseudomonas Coccus................................................ Neisseria Use the dichotomous key in Table 2 to identify a gram-negative rod that ferments lactose and uses citric acid as its sole carbon source. Group of answer choices C) PseudomonasChopped garlic often contains C. botulinum endospores and iscommonly sold submerged in olive oil, which creates an anaerobicenvironment. What is required to be added to garlic sold in thismanner?a. sodium chlorideb. citric acidc. waterd. A warning label describing the symptoms of botulism.. A certain medium has the following composition: Glucose 15 g Yeast extract 5 g Peptone 5 g KH2PO4 2 g Distilled water 1,000 ml Tell what chemical category this medium belongs to, and explain why this is true. How could you convert Staphylococcus medium (table 3.6A) into a nonsynthetic medium? a. Name four categories that blood agar fits. Alpha hemolysis Beta hemolysis Gamma Alpha prime Name four differential reactions that TSIA shows. Observe figure 3.15. Suggest what causes the difference in growth pattern between nonmotile and motile bacteria. Explain what a medium that is both selective and differential does, using figure 3.18. a. What kind of medium might you make to selectively grow a bacterium that lives in the ocean? MSA Mannitol salt agar One that lives in the human stomach? Why are intestinal bacteria able to grow…
- Help indetifying the unknown bacteria ? Gram Stain: Purple Cell Morpholgy: Rods Oxygen Requirement: OA Acid Fast Stain: pink Endospore Stain: pink rods Blood agar-hemolysis: no lysis Phenol red-glucose fermentation:red,no gas Phenol red -lactose fermentation:red,no gas Phenol red - mannitol fermentation:red,no gas Phenol red-sucrose fermentation: red,no gas Methyl red:no change Voges-Proskaur: no change Oxidase: no change Catalase: bubbles Nitrate Reduction: red after a & bHelp indetifying the unknown bacteria ? Gram Stain: Pink Cell Morpholgy: Bacillus Oxygen Requirement: OA Acid Fast Stain: green Endospore Stain: pink rods Blood agar-hemolysis: lysis (yellow clearing) Phenol red-glucose fermentation:red,no gas Phenol red -lactose fermentation:red,no gas Phenol red - mannitol fermentation:red,no gas Phenol red-sucrose fermentation: red,no gas Methyl red:no change Voges-Proskaur: no change Oxidase: purple Catalase: bubbles Nitrate Reduction: red after zinxA certain medium has the following composition: Glucose 15 g Yeast extract 5 g Peptone 5 g KH2PO4 2 g Distilled water 1,000 ml Tell what chemical category this medium belongs to, and explain why this is true. How could you convert Staphylococcus medium (table above) into a non-synthetic medium? a. What kind of medium might you make to selectively grow a bacterium that lives in the ocean? One that lives in the human stomach? Why are intestinal bacteria able to grow on media containing bile?
- Purpose Solve the identity of an unknown bacterial specimen by creating a dichotomous key and using the staining, culturing and biochemical identification procedures you have learned about during the semester. Possible Organisms Alcaligenes faecalis Enterobacter aerogenes Enterococcus faecalis Escherichia coli Proteus vulgaris Pseudomonas aeruginosa Salmonella arizoniae Staphylococcus aureus Staphylococcus epidermidis Staphylococcus saprophyticus Streptococcusbovis Streptococcus pyogenes You must write up your OWN dichotomous key for all the possible unknown organisms listed on above. Writing this key requires you use the same type of reasoning used in the Dichotomous key lab. The first step of the key will be the Gram Stain. Subsequent steps will include biochemical tests only. Please help me with this question. Thank you so much !1- Explain the germicical action of agno3 and hgcl2 2- Why does concentrated hno3 acid stain the kin yellow 3- explain the use of heat as an agent of sterlization. cite examples where heat is used as an agent of sterlization 4- offer an explination why picric acid and tannic cid are used in the treatment of burns . 5- cite some practical applicayions of detnaturation"Microorganisms used a biological warfare." a. What is the scientific name of the microorganism/s and its general characteristics?b. Why those microorganisms are used in such process/product?c. How do/does the microorganism/s impact the lives of human?
- Different stains have different affinities for different organisms or different parts of organisms. Elaborate on this statement using the Hematoxylin and Eosin staining as an example.Metachromatic granules are concentrated ____________found in _______ .a. fat, Mycobacterium c. sulfur, Thiobacillusb. dipicolinic acid, Bacillus d. PO4, CorynebacteriumIdentify this bacteria from the information provided below: What is the unknown bacteria? Morphology: Bacillus Gram stain: purple Oxygen requirements: FA Endospore stain: Green Hemolysis: complete Glucose fermentation: yellow, no gas Lactose fermentation: red, no gas Methyl red: red VP: no change Oxidase: no change Catalase: bubbles Nitrate reduction: red after zinc Citrate utilization:blue Urea: orange Starch hydrolysis: halo Gelatin hyrolysis: liquid