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bio 2 from Lab Manual 4 TH edition Leboffe and Pierce
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- Will UPVOTE Answer the following: 1. What is the effect of boiling in the test tube with starch solution and saliva? 2. What is anaerobic oxidation? In your observation, which is the Hydrogen acceptor in the experiment, methylene blue or milk? 3. If the sample turned to blue or black upon the addition of I2 solution, is the honey genuine or not? Explain your answer 4. What changes do you think take place as the color changes upon the addition of phenol, pyrogallol or catechol and guac solution to the potato extract? 5. Differentiate an enzyme activator from an indicatorQuestion;- Write the modes of action for the following measurements. There may be more than one measurement for each mode and/or more than one mode for each measurement. ■ Radioactive methionine incorporation ■ Radioactive uracil incorporation ■ Radioactive thymine incorporation ■ Glucose depletion ■ DNA present in the brothSome Metabolic Activities of Bacteria A. Questions: 1. List 5 importance of using selected and differential culture media. 2. Mannitol Salt Agar is a differential or selective media? Explain why? 3. What enzyme and explain the principle on how Simmons citrate agar change in color for positive result? 4. What two groups of bacteria that can be differentiated with the catalase test?
- Phenylananine Deaminase: 1. Explain the incubation conditions 2. Explain the reagents being added 3. Explain the observations in phenylananie deaminase 4. Explain the interpretations in phenylananie deaminase4. 5. occurrence. How can the lag phase be minimized and the exponential phase be prolonged? "Each phase of growth of cells in a batch culture is of potential importance in a microbial CO3 process" Elaborate it. Explain the diauxic growth of cells with the help of growth of E.Coli in batch culture CO2 containing multi-substrates.Home Tools 6weekwomensfull... ↓↓ Nelson Biology 11... 8.27 x 11.69 i 3 / 7 Unit 1- Quiz on Le... x 188% 7. Which of the follow is false with regards to Eubacteria? These bacteria can engage in either [or both] aerobic and anaerobic respiration O These bacteria form endospores to reproduce There are three types of these bacteria; thermophiles, methanogens, halophiles Both B and C are false Vimin that ramain daumont within the call munt ha in thin /thann svalafal 1 p Sign In (S C E E
- Catalase: 1. Explain the incubation conditions 2. Explain the reagents being added 3. Explain the observations in Catalase 4. Explain the interpretations in CatalaseQuestion: Give the importance of biochemical test for the identification of the members of Enterobacteriaceae.XSA Scale and comparing if a color reaction has occure 12. Given what you know about Enterotubes and the types of bacteria that they can identify, why would selecting a colony from your blood agar plate to test with your Enterotube be a bad idea? 13. Identify four species of bacteria that you expect to find in a fecal sample as part of your normal microbiota. Be sure to write out the entire scientific name of the organism. Four bacterial species found in fecal sample as part of normal microbiota are bacteroides, bifidobacterium, bacterium, and peptostreptococcus, nat are common symptoms associated with gastrointestinal diseases? Symptoms assocICHed with gastrointestinal disease include bloating, excess gas, constipation, Obdominal pain, neartburn, and diarrhea 15. Identify four all
- TEST III. MATCHING TYPE. Match the microorganisms in column A with their corresponding product in column B, then match your answer in column B to column C.Biochem: Please help! 1) What are the effects of the addition of Aniline to Invertase? 2) What are the effects of the addition of copper (II) sulfate to Invertase? 3) What different form(s) of inhibition are observed with the inhibitors at low versus high substrate concentration?1. Give the importance of carbohydrate fermentation test in biochemical testing and enumerate the enzymes that are involved. (5 points) 2. What are the substances added in the culture media utilized by the organism producing hydrogen sulfide? Give 2 other media used for the production of hydrogen sulfide. (5 points) 3. Explain the mechanism taking place in the hydrolysis of urea which leads to the formation of bluish red color. ( 5 points) 4. Discuss why human blood plasma will not always yield reliable results. (5 points)