A carbohydrate sample reacts positively with all test reagents except for Lugol's. The sample could possibly be?
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- QUESTION 3: What is the purpose of the Tris-Acetate-EDTA (TAE) buffer that will be used to prepare and run the agarose gel? What would happen if you used water to prepare and run the gel instead of TAE buffer? (You should conduct an internet search to answer this question but answers should be in your own words. Please include a reference for any sources you used)If catalase is tested with the biuret reagent, what would be the ideal result? Why? If catalase is mixed with heavy metals, will it increase its activity of H2O2, yes or no? Defend your answer.Which of the following stains highlights iron deposits in cells? Question 10 options: A) Prussian blue B) LAP C) TRAP D) alpha-naphthyl butyrate esterase
- Suppose a positive Barfoed's test was obtained with sucrose solution suggest and 2-3 sentence explanationBased on this video https://www.youtube.com/watch?v=rKng5-ij6kQ Provide a schematic diagram for the Fehling’s test methodologies in determining the presence of carbohydrates. Also, give the basic principle for the test. (not a graded question, video is very brief)Can you please briefly describe the reaction mechanism that permits the detection of reducing sugars especially with the fehling's test ( please provide all the mechanisms involved in this test ) and also on how to interpret the results from this test Want solution ASAP in detail
- Based on this video https://www.youtube.com/watch?v=rKng5-ij6kQ Provide a schematic diagram for the Fehling’s test methodologies in determining the presence of carbohydrates. Also, give the basic principle for the test. (not a graded question)You are given a drink that has been sweetened with either maltose or sucrose. Using the following resources explain how you would test unambiguously if the drink was sweetened with either saccharose or maltose? Explain the carbohydrate chemistry behind the test to justify your answer. In addition to general laboratory equipment and water the ONLY reagents available to you are: the drink the enzymes invertase and maltase the Somogyi-Nelson reagents for the determination of reducing sugars concisely describe the tests that you would use: ii) concisely describe the observations in case that the drink was made with maltose: iii) concisely describe the observations in case that the drink was made with sucrose:Your supervisor asks to make 350 mL of a 0.75% (w/v) starch solution using a 5% (w/v) stock solution. You have calcuated how much stock solution you need. But, how much water (in mL) will you need to add to the stock to achieve the correct final concentration?
- https://www.youtube.com/watch?v=rKng5-ij6kQ Provide a schematic diagram for the Seliwanoff’s test methodologies in determining the presence of carbohydrates. Also, give the basic principle for the test. (not a graded question, video is very brief)Which of the following tests gives bluish green product due to the presence of carbohydrates?* A. Molisch B. Anthrone C. Benedict D. Seliwanoff E. None of the given options38. Which test can distinguish between sesame oil and corn oil? a. Burchard test b. Baudouin test c. Sudan IV test d. Dichromate test 39. What solvent would be miscible with coconut oil? a. chloroform b. water c. both a and b d. neither a nor b 40. Which of the following is a product of saponification of fatty acids? a. glycerol b. NaOH c. both a and b d. neither a nor b