POST-LAB QUESTIONS D. Barfoed'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

Health Safety And Nutrition F/Young Child
9th Edition
ISBN:9781305144767
Author:MAROTZ
Publisher:MAROTZ
Chapter13: Nutrients That Provide Energy (carbohydrates, Fats, And Proteins)
Section: Chapter Questions
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BARFOED'S TEST You can use this as your reference : https://youtu.be/rKng5-ij6kQ
A. Characteristic Tests of Carbohydrates
Sample
Barfoed's
Molisch Test Benedict's Test
Seliwanoff's Test
lodine's Test
Fehling's Test
Solutions
Test
Glucose
Positive
Positive
Negative
Positive
Negative
Positive
Fructose
Positive
Positive
Negative
Positive
Negative
Positive
Lactose
Positive
Positive
Negative
Negative
Negative
Positive
Negative
Negative
Negative
Positive
Negative
Sucrose
Positive
starch
Negative
Negative
Positive
Negative
Negative
Negative
POST-LAB QUESTIONS
D. Barfoed'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 Molisch Test Benedict's Test Seliwanoff's Test lodine's Test Fehling's Test Solutions Test Glucose Positive Positive Negative Positive Negative Positive Fructose Positive Positive Negative Positive Negative Positive Lactose Positive Positive Negative Negative Negative Positive Negative Negative Negative Positive Negative Sucrose Positive starch Negative Negative Positive Negative Negative Negative POST-LAB QUESTIONS D. Barfoed'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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