This question is regarding Biochemical Tests done with S. Aureus. It specifically is asking about the...
This question is regarding Biochemical Tests done with S. Aureus. It specifically is asking about the sucrose fermentation test, which was acidic.
During the sucrose fermentation test, a color change indicating acid production is more meaningful than no color change in the same medium. Why?
Homework Answers
The colour change in sucrose fermentation test detect the production of acid from fermentation.This test includes phenol red broth.its general purpose is to differentiate gram negative bacteria.Phenol red is a ph indicator which turn yellow below 6.8 ph level and fuchsia above 7.4 ph level.If the bacteria ferments carbohydrates and an acid by product is created and the media turns yellow.if the bacteria can not ferment the carbohydrates but use the peptone the ammonia by product is released and make the ph high and turns fuchsia.Thus through the fermentation reaction of carbohydrates the difference of the gram negative bacteria is detected.Gram negative bacilli is detected by it .E.x-Enterobactor
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This question is regarding Biochemical Tests done with S.
Aureus. It specifically is asking about the...
• During the sucrose fermentation test, a color change indicating acid production is more meaningful than...
• During the sucrose fermentation test, a color change indicating acid production is more meaningful than no color change in the same medium. Why? (2 points)
CTED VIEW Be careful files from the Internet can contain viruses. Unless you need to edit,...
CTED VIEW Be careful files from the Internet can contain viruses. Unless you need to edit, it's safer to stay in Pra Metabolic Tests Workshe Summary Complete the following table that summarizes the tests that we conducte Appearance of Result What causes Reaction/Enzyme Used/Innoculation N the change in the Result medium's Test Biochemical Medium Involved Procedure Result appearance? Lactose Fermentation Gelatinase Starch Hydrolysis Urease Citrate Permease CatalaseARREN Tryptophanase Casein SIM Nitrate Reduction Questions Answer the following questions about the metabolic...
Post-Experiment Questions: 8. What would a more acidic pH indicate about the fermentation reaction? Think about...
Post-Experiment Questions: 8. What would a more acidic pH indicate about the fermentation reaction? Think about what produces acid as a metabolic byproduct 9. Based on lecture material what could be done to isolate the wine mixture from the yeast culture? What method would be most the most logical for preserving the wine mixture? 10. If the lead acetate paper turns a dark color this indicates the production of hydrogen sulfide gas during primary fermentation. Given its chemical formula. what...
I specifically need help with the last question asking about how this would affect the molecular...
I specifically need help with the last question asking about
how this would affect the molecular formula, thank you
4. If some of the calcium metal remains unreacted when you start the titration, the calcium will react with hydrochloric acid to produce hydrogen gas. Ca (s) + 2 HCl(aq) + CaCl, (aq) + H, (g) Would this cause error in the titration? If so, would more or less HCl be required? How would this affect the molecular formula for calcium...
Name: ALCOHOL FERMENTATION EXPERIMENT Premise: Yeast are capable of carrying out an anaerobic energy production pathway...
Name: ALCOHOL FERMENTATION EXPERIMENT Premise: Yeast are capable of carrying out an anaerobic energy production pathway called fermentation (anaerobic glycolysis). The waste products produced include CO2 and alcohol. All that is necessary to carry out this reaction is an adequate supply of sugar and a lack of oxygen. CO2 NADH + H TPP, NAD+ OH OH Mg2+ C=0 CH2 pyruvate alcohol CH3 decarboxylase CH 3 dehydrogenase CH3 Pyruvate Acetaldehyde Ethanol Without the potential to move into the tricarboxylic acid cycle...
Microbiology ONLY answer 1 2 3 4 5 6 7 8 9 10 11 12 13...
Microbiology
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Salmonella is associated with the handling of contaminated beef True False Escherichia coli is a red-pigmented organism. True O False The results of the MR-VP test can be directly read from the test without the addition of any other chemicals. True False Which medium contains a pH indicator to show pH change caused by fermentation? Glucose Broth Lactose Broth SIM Lactose and...
Background Background continued... Questions Experiment 2: TSI The triple sugar iron agar (TSI) can identify gram...
Background
Background continued...
Questions
Experiment 2: TSI The triple sugar iron agar (TSI) can identify gram negative bacteria based on how they metabolize carbohydrates. It contains three carbohydrates-glucose, lactose and sucrose, in addition to sodium thiosulfate which some bacteria use in the production of hydrogen sulfide (H2S). It also contains iron in the ferrous form and phenol red as a pH indicator. TSI is poured into a tube when heated to a liquid form, and the tube is slanted as...
You are given a mixed culture of two organisms in a small tube of TSB.
You are given a mixed culture of two organisms in a small tube of TSB. These two organisms include a Gram-negative strain (your bacterial strain to identify) and a Gram-positive strain (a contaminant). Your first task is to isolate these organisms which will help you identify which Gram-negative strain you are working with. 1) You inoculate two streak plates on TSA media and MacConkey Agar using aseptic technique. For each medium, state whether the medium is selective, differential, or neither and...
Hello can you answer the incorrect question ? X Incorrect 1) What group does the Benedict's...
Hello can you answer the incorrect question ?
X Incorrect 1) What group does the Benedict's test oxidize? A. A ketone B. More than one of these C. An ether D. An aldehyde X (Your Answer) X Incorrect 3) If you have a polysaccharide, what color is it when mixed with lodina? A. Deep brown X (Your Answer) B. Deep violet C. Light Brown D. Prussian red X Incorrect 4) What sugar was negative to the Benedict's test? A. Fructose...
2) Which of the following IQ tests was specifically designed to attempt to overcome ethnic and...
2) Which of the following IQ tests was specifically designed to attempt to overcome ethnic and cultural biases that may exist in other IQ tests? A) the Wechsler-Bellevue Scale B) the WPPSI-R C) the Raven Progressive Matrices Test D) the Remote Associates Test 3) Luis completes a Wechsler scale and his overall score is 90. What may we conclude about Luis? A) He has an intellectual disability. B) His IQ is barely within the normal range C) His IQ is...
• During the sucrose fermentation test, a color change indicating acid production is more meaningful than no color change in the same medium. Why? (2 points)
CTED VIEW Be careful files from the Internet can contain viruses. Unless you need to edit, it's safer to stay in Pra Metabolic Tests Workshe Summary Complete the following table that summarizes the tests that we conducte Appearance of Result What causes Reaction/Enzyme Used/Innoculation N the change in the Result medium's Test Biochemical Medium Involved Procedure Result appearance? Lactose Fermentation Gelatinase Starch Hydrolysis Urease Citrate Permease CatalaseARREN Tryptophanase Casein SIM Nitrate Reduction Questions Answer the following questions about the metabolic...
Post-Experiment Questions: 8. What would a more acidic pH indicate about the fermentation reaction? Think about what produces acid as a metabolic byproduct 9. Based on lecture material what could be done to isolate the wine mixture from the yeast culture? What method would be most the most logical for preserving the wine mixture? 10. If the lead acetate paper turns a dark color this indicates the production of hydrogen sulfide gas during primary fermentation. Given its chemical formula. what...
I specifically need help with the last question asking about
how this would affect the molecular formula, thank you
4. If some of the calcium metal remains unreacted when you start the titration, the calcium will react with hydrochloric acid to produce hydrogen gas. Ca (s) + 2 HCl(aq) + CaCl, (aq) + H, (g) Would this cause error in the titration? If so, would more or less HCl be required? How would this affect the molecular formula for calcium...
Name: ALCOHOL FERMENTATION EXPERIMENT Premise: Yeast are capable of carrying out an anaerobic energy production pathway called fermentation (anaerobic glycolysis). The waste products produced include CO2 and alcohol. All that is necessary to carry out this reaction is an adequate supply of sugar and a lack of oxygen. CO2 NADH + H TPP, NAD+ OH OH Mg2+ C=0 CH2 pyruvate alcohol CH3 decarboxylase CH 3 dehydrogenase CH3 Pyruvate Acetaldehyde Ethanol Without the potential to move into the tricarboxylic acid cycle...
Microbiology
ONLY answer
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Salmonella is associated with the handling of contaminated beef True False Escherichia coli is a red-pigmented organism. True O False The results of the MR-VP test can be directly read from the test without the addition of any other chemicals. True False Which medium contains a pH indicator to show pH change caused by fermentation? Glucose Broth Lactose Broth SIM Lactose and...
Background
Background continued...
Questions
Experiment 2: TSI The triple sugar iron agar (TSI) can identify gram negative bacteria based on how they metabolize carbohydrates. It contains three carbohydrates-glucose, lactose and sucrose, in addition to sodium thiosulfate which some bacteria use in the production of hydrogen sulfide (H2S). It also contains iron in the ferrous form and phenol red as a pH indicator. TSI is poured into a tube when heated to a liquid form, and the tube is slanted as...
Hello can you answer the incorrect question ?
X Incorrect 1) What group does the Benedict's test oxidize? A. A ketone B. More than one of these C. An ether D. An aldehyde X (Your Answer) X Incorrect 3) If you have a polysaccharide, what color is it when mixed with lodina? A. Deep brown X (Your Answer) B. Deep violet C. Light Brown D. Prussian red X Incorrect 4) What sugar was negative to the Benedict's test? A. Fructose...
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