1.Which test is used to differentiate between fermentative and oxidative metabolism?describe the different results that may be observed with this test
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1.Which test is used to differentiate between fermentative and oxidative
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- Which of the following is false about the TSI test? A. It looks for CO2 or H2S gas production B. Hydrogen sulfide precipitates our as black C. It can tell if sucrose or lactose is fermented D. It changes from red to yellow when acid is produced E. It tests for lactose, sucrose, glucose fermentation1. What important by‐products are obtained in commercial fermentation processes? 2. Of what value is iodoform test? 3. What is meant by each of the following? a. denatured b. absolute c. proof1. Differentiate the traditional fermentation and modern fermentation in terms of their application, process or procedure, advantages and disadvantages, vintage variance, food pairing and nutritional value.
- 1. Give the importance and purpose of the Cetrimide Test. 2. being performed - Dry Filter Paper Method, Wet Filter Paper Method and Swab Method. 3. In the Oxidative-Fermentative Test, differentiate non-saccharolytic from oxidative from fermentative results.1. Select one product of anaerobic respiration or fermentation.2. It should include the following: a. Description of the Product b. Method/ Process of Creating the Product c. Uses/ Importance of the Productwhat does a negative result mean in an oxidase test?Select all that applies a)The bacteria may undergo anaerobic respiration b)The bacteria may have a cytochrome C oxidase c)The bacteria may undergo aerobic respiration d)The bacteria will not have cytochrome C oxidase e)None of the anwers are correct
- Ex. 35 = Products Formed in Milk: The Litmus Milk Test (p.297) How does the litmus milk test work? What are the possible outcomes? What do these outcomes tell you about the bacterial metabolism? Ex. 36 = Test for Cytochrome c (Oxidase) and Catalase Activities (p. 303) How does the oxidase test work? What does it tell you about bacterial metabolism? How does the catalase test work? What does it tell you about bacterial metabolism? What do positive/ negative results look like for these tests?1. What happens if sample for Potassium determination is refrigerated? What causes the variation? 2. What is the role/importance of Potassium in the body metabolism? 3. In doing the assay, why is hemolyzed sample not allowed?Make a schematic diagram of the procedure of Barfoed's Test which is also a test for reducing
- 1) Which respirometers is the most likely to contain distilled water + yeast (A,B,C,D,E) 2)Which of the respirometers contains carbohydrates that is fermented most efficiently by the yeast (A,B,C,D,E)1. Why does a precipitate form on Sierra's medium when incoulated with a lipolytic organism? Give the reasons and explain it thoroughly.1, What is the difference between alcoholic and acetic acid fermentation in terms of cultures used to start the fermentation?2. What other substrates can be used to produce vinegar?