A. Characteristic Tests of Carbohydrates Sample Barfoed's Test Molisch Test Benedict's Test lodine's Test Seliwanoff's Test Fehling's Test Solutions Glucose Positive Positive Negative Positive Negative Positive Fructose Positive Positive Negative Positive Negative Positive Lactose Positive Positive Negative Negative Negative Positive Sucrose Positive Negative Negative Negative Positive Negative starch Negative Negative Positive Negative Negative Negative POST-LAB QUESTIONS F. Fehling's Test 1. Describe the evidence for a positive test. 2. What does a positive test indicate?_ 3. What is the chemical basis for a positive test? 4. Circle the names of the substances that gave a positive test. Glucose Fructose Lactose Sucrose Starch

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
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FEHLING'S TEST You can use this as your reference : https://youtu.be/rKng5-ij6kQ
A. Characteristic Tests of Carbohydrates
Sample
Barfoed's
o mo
Test
Molisch Test Benedict's Test lodine's Test
Seliwanoff's Test
Fehling's Test
Solutions
Negative
Positive
Glucose
Positive
Positive
Negative
Positive
Negative
Positive
Fructose
Positive
Positive
Negative
Positive
Negative
Negative
Positive
Lactose
Positive
Positive
Negative
Positive
Negative
Negative
Positive
Negative
Sucrose
Negative
starch
Negative
Negative
Positive
Negative
Negative
Negative
POST-LAB QUESTIONS
F. Fehling's Test
1. Describe the evidence for a positive test.
2. What does a positive test indicate?_
3. What is the chemical basis for a positive test?_
4. Circle the names of the substances that gave a positive test.
Glucose Fructose Lactose Sucrose Starch
Transcribed Image Text:A. Characteristic Tests of Carbohydrates Sample Barfoed's o mo Test Molisch Test Benedict's Test lodine's Test Seliwanoff's Test Fehling's Test Solutions Negative Positive Glucose Positive Positive Negative Positive Negative Positive Fructose Positive Positive Negative Positive Negative Negative Positive Lactose Positive Positive Negative Positive Negative Negative Positive Negative Sucrose Negative starch Negative Negative Positive Negative Negative Negative POST-LAB QUESTIONS F. Fehling's Test 1. Describe the evidence for a positive test. 2. What does a positive test indicate?_ 3. What is the chemical basis for a positive test?_ 4. Circle the names of the substances that gave a positive test. Glucose Fructose Lactose Sucrose Starch
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