f four identical test tubes contains same amount of glucose, lactose, starch, and sucrose solution. How to differentiate between them by employing different biochemical tests with proper explanation. Write down the mechanism and observation.
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If four identical test tubes contains same amount of glucose, lactose, starch,
and sucrose solution. How to differentiate between them by employing
different biochemical tests with proper explanation. Write down the
mechanism and observation.
Step by step
Solved in 5 steps
- Explain how to perform a catalase test and what a positive result looks likeMatch the appropriate answer between A and B : A: Glycogen with iodine test produce , Millon's test gives , Molisch's reagent , Osazone , Lead sulfide , Galactose , Hopkin Cole test , Ring formation in , Biuret's test , Bial's reagent B: Disaccharide , Yellow Ppt , Sulfur group , Red Color , Red Ppt , Black Ppt , Tyrosine Resorcinol n , Resorcinol naphthol , Red-brown color , Orcinol , Polypeptide , Tryptophan , MonosaccaridesDiscuss the correct laboratory technique in using the centrifuge for qualitative analysis. Give two tips on its proper use. Explain how calcium ions are confirmed present in a solid salt by using flame test. Discuss a method to confirm the presence of a) phenol and b) ketone in a test compound. How are proteins confirmed present in a sample? Explain the laboratory process.
- What test could be used to differentiate between glucose and fructose? ExplainThe table below summarizes the results for Ninhydrin test. Provide the correct remarks from the results if it's either Positive for Ninhydrin test or Negative for Ninhydrin test. and if it's Positive for α-amino acid or Negative for α-amino acid.By alkaloidal reagent Place 3mL of egg albumin solution in each of the two test tubes, to one tube add 1 – 2 ml of tannic acid solution and to other one picric acid. Describe the appearance of the protein solutions in each of the tubes after addition of the alkaloidal reagents.
- The reults for the macroscopic part: 0.30M glycerin – solution was translucent (could see text behind the test tube) 0.15M NaCl – solution was opaque (could not see text behind the test tube) 0.30M NaCl – solution was opaque (could not see text behind the test tube) 0.15M glucose – solution was translucent (could see text behind the test tube) 0.30M glucose – solution was opaque (could not see text behind the test tube) 0.30M Urea – solution was translucent (could see text behind the test tube) Results for microscopic part: 0.30M glycerin – no cells present 0.15M NaCl – normal sized cells 0.30M NaCl – crenated (shrunken and star-shaped) cells 0.15M glucose – no cells present 0.30M glucose – normal sized cells 0.30M Urea – no cells present Determine the osmolarity (hypoosmotic, isosmotic, or hyperosmotic) and tonicity (hypotonic, isotonic, hypertonic) of the following solutions.In which solutions did the osmolarity NOT match the tonicity? For those solutions, why did the osmolarity…What is different between Benedict test that use for qualitative determination and quantitative determination of Glucose?Think of another type of test to determine whrther a person is lactase persistent or nonpersistent. Describe idea in one or two sentences.
- If the inoculated lactose broth cube exhibits acid production but without gas formation, will you consider this as a negative or positive result? Explain Why is the MPN test qualitative rather than quantitative? Why is the MPN test qualitative rather than quantitative? Why is MPN test qualitative rather than quantitativeCOMPLETE THE TABLE BELOW: The six tests for the detection of functional groups in amino acids and proteins. TEST REAGENTS POSITIVE RESULT POSITIVE INDICATIONWhat is the purpose of Glucose test? For Carbohydrates Metabolism : of Glucose during lab?