Give the color reactions.Test Tube1. starch solution,pancreatin, and water2. starch solution,pancreatin, andsodium carbonateLugol's TestBenedict's Test3. starch solutionNote: Test tubes are immersed in a water bath for 30 minutes in temperature 37 degrees celsiusto 40 degrees celsius before performing the 2 tests.Questions:1. What test tube will show positive starch hydrolysis and negative starch hydrolysis?Explain each why it resulted in positive starch hydrolysis and negative starch hydrolysis.2. What will be the effect of sodium carbonate in the test tubes?

Starch is a storage-type homopolysaccharide that contains two types of glucose polymers: amylose:…

Answered: Questions: 1. What test tube will show…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

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Problem 1P

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Directions: Indicate whether the given compound will yield positive (+) or negative (-) results. Acrolein's Test _________1. Glucose _________2. Sucrose _________3. Butter _________4. Canola Oil _________5. Albumin Huble's Test _________1. Glucose _________2. Sucrose _________3. Butter _________4. Canola Oil _________5. Albumin
t /g = (Log Nt – Log N0) /0.301 10 mL of a culture of Enterobacter at 104 cells/mL is introduced into 990 mL of the same broth at the same temperature (37° C) with adequate mixing. It is 8 p.m. the night before class on Tuesday at 11 a.m. Doubling time for this species is 40 minutes. Will the culture reach Stationary Phase before class?
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 indicator
GIVE A DETAILED AND COMPLETE DESCRIPTION FOR THE FOLLOWING: 1. What are the culture media used in the following tests? — indole production test (indole production from tryptophan) — lysine decarboxylase test 2. What are the expected results in the following tests? — indole production test (indole production from tryptophan) — lysine decarboxylase test
Create a flow chart to perform the required tests to identify unknown microorganism: - Use at least 3 other biochemical tests from the following list: Mannitol salt agar, Blood agar, Starch agar, Tributyrin Agar, Gelatin, Casein agar, Indole Production, MR-VP, Citrate, Hydrogen Sulfide test, Urease test, Nitrate reduction test, Catalase test, and Oxidase test. The Gram positive organisms that could be present in your unknown mixture are: Bacillus cereus, Micrococcus luteus, Staphylococcus aureus, Staphylococcus epidermidis and Lactococcus lactis.
Answer the following questions. 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 12 solution, is the honey genuine or not? Explain your answer.
Examine the given sets of table below. Which disinfectant is the MOST recommended? Support and Justify your answer. Table 2. Phenol Coefficient of Test Disinfectant Name of disinfectant Growth after 5 minutes Dettol Phenol Name of disinfectant Z-germicSide Phenol Name of disinfectant Jik Phenol KEY:- = No growth, + = Growth Dilution 1:100 1:125 1:150 1:175 1:200 1:95 1:100 1:105 1:110 1:115 Dilution 1:100 1:125 1:150 1:175 1:200 1:95 1:100 1:105 1:110 1:115 Dilution 1:100 1:125 1:150 1:175 1:200 1:95 1:100 1:105 1:110 1:115 + + + + + + + + Growth after 5 mins + + + + + + + Growth after 5 mins + + + + + + Growth after 10 minutes + + + + + Growth after 10 minutes + + + + + Growth after 10 mins + - + + + + + + Growth after 15 minutes + + + + + + Growth after 15 mins - + + + + + Growth after 15 mins + + + + - + + + +
How do you calculate the Total Na and Total K on this order?
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Catalase Yeast Test Questions: 1. Why is it important to graph volumes that did not include the initial volume? 2. How might the temperature of the yeast mixture affect a reaction? 3. What effect would increasing the amount of yeast have on a reaction?

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Questions: 1. What test tube will show positive starch hydrolysis and negative starch hydrolysis? Explain each why it resulted in positive starch hydrolysis and negative starch hydrolysis. 2. What will be the effect of sodium carbonate in the test tubes?