TestAdded reagent/sSamplesObservation andinterpretationFehling's TestGlucoseLactoseSucroseStarch Qualitative Analysis of CarbohydratesHELPSelect the test:Place test tubesin waterbathFehling's testAFehling'solutionFehling'ssolutionResetGlucoseLactoseSucroseStarchQualitative Analysis of CarbohydratesHELPReducing sugars (glucose & lactose) reduce the deep blue solution ofcopper (II) in the test reagent to red precipitate of insoluble cuprous oxide.Select the test:Fehling's testReset<>

A carbohydrate is an organic compound having carbon, hydrogen, and oxygen and with the general…

Answered: Qualitative Analysis of Carbohydrates…

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

Section: Chapter Questions

Problem 1P

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Similar questions

What is the name of Glucosedetecting reagent? In brief, how Starch testing is performed? What is the reagent for Protein testing? What is Albumin: carbohydrate, lipid or something else?
Match the results to the name of the test. (+) (+) (+) Brain Glucose sugar (+) Levulose (+) Agar sugar Sucrose Xylose Starch and (-) and (-) and (+) and (-) and (-) and (-) and (-) Sucrose Levulose Starch Milk Glycogen Dextrose Gelatin (+) Brain (+) (+) and (-) Вeet sugar sugar Nylander's Test Mucic acid Test Seliwanoff's Test Barfoed's Test Bial's Test
Does fructose can produce a positive result in Seliwanoff Test? Elaborate your answer
Give the reagents used and the actual result of the produc
WHAT IS THE PRINCIPLE, APPLICATION, AND RELEVANCE OF THE FOLLOWING IN TESTING THE CARBOHYDRATES?-Molisch test -Benedict’s test -Nylander’s test -Osazone’s test -Tollen’s test -Barfoed’s test -Seliwanoff’ s test -Iodine’s test
Test Done and Result Carbohydrate Identity Molisch test Seliwanoff's test Benedict's test Barfoed's test Lugol's Iodine Orcinol's Test Ozazone test test Brown solution Light blue solution No crystalization Violet Ring Light yellow solution Light blue solution Blue solution Green solution Red solution in 1 Brownish Violet Ring Cherry red solution Light blue solution No crystalization min solution Brown solution Cherry red solution in 15 min Light blue solution Brownish Violet Ring Brick red ppt No crystalization| solution Red solution Red solution in 1 min Brownish Violet Ring Light yellow solution Brick red ppt crystals structure solution Red solution Light blue solution Brownish Violet Ring Light yellow solution Brick red ppt crystal structure solution Blue solution Red solution in 1 Brownish Violet ring Light yellow solution Light blue solution Crystal srtructure min solution
In the hydrolyzing polysaccharides with saliva, the instructor followed the steps in the order listed below: prepared two tubes with starch (tubes 1 and 2); tested samples from both tubes with the IKI test and the Benedict's test; added saliva to tube 2 both tubes were immediately placed in a 37°C water bath for 15 minutes; • removed the tubes, and tested samples from both tubes with IKI and the Benedict's. Which of the following are correct about the results of the tests for a group of students who did all of the steps correctly. If hydrolysis can occur, assume that all polymers are hydrolyzed. Select ALL of the possible answers. O Tube 1 should have a negative IKI test. O Tube 2 should have a positive Benedict's test. O Tube 1 should have a negative Benedict's test. O Tube 2 should have a positive IKI test. O Tube 2 should have a negative IKI test. O Tube 2 should have a negative Benedict's test. O Tube 1 should have a positive IKI test. O Tube 1 should have a positive Benedict's…
In a tabular form, enumerate other chemical qualitative tests for carbohydrates, discuss its principle, chemical reagents employed and its positive test result.
Direction: Answer the table thoroughly. Watch the procedure here: 1. https://youtu.be/l0LC69NXwg4 2. https://youtu.be/rKng5-ij6kQ
iodine test for polysaccharides a.on the spot plate separately place 5 drops of 3 % solution of starch and glucose. to each spot, add 2 drops of iodine solution. b.observe the color formed.
Identify the unknown carbohydrate sample and give it's rationale
Indicate a positive result with a (+) sign, and a (-) if otherwise. A triple (+) may be used to indicate a fast or intense positive.

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Qualitative Analysis of Carbohydrates HELP Select the test: Place test tubes in waterbath Fehling's test Fehling solution Fehling' solution Reset Glucose Lactose Sucrose Starch