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POST-LAB QUESTIONS 1. When a reducing sugar reacts with Benedict reagent, what organic product is formed besides Cu,O? Why is the formation of Cu,O significant in this test? 2. What chemical test is performed to indicate the completion of the hydrolysis of starch by acid? 3. The one end of starch is hemiacetal. Why it does not react with Benedict's reagent? 4. Circle and label hemiacetal and acetal in each of the following molecules. CH,OH CH,OH OH OH Lactose Sucrose

POST-LAB QUESTIONS 1. When a reducing sugar reacts with Benedict reagent, what organic product is formed besides Cu,O? Why is the formation of Cu,O significant in this test? 2. What chemical test is performed to indicate the completion of the hydrolysis of starch by acid? 3. The one end of starch is hemiacetal. Why it does not react with Benedict's reagent? 4. Circle and label hemiacetal and acetal in each of the following molecules. CH,OH CH,OH OH OH Lactose Sucrose

Biochemistry
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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POST-LAB QUESTIONS 1. When a reducing sugar reacts with Benedict reagent, what organic product is formed besides Cu,0? Why is the formation of Cu,O significant in this test? 2. What chemical test is performed to indicate the completion of the hydrolysis of starch by acid? 3. The one end of starch is hemiacetal. Why it does not react with Benedict's reagent? 4. Circle and label hemiacetal and acetal in each of the following molecules. CHOH CH,OH CHOH CH,OH OH CH,OH Lactose Sucrose
Transcribed Image Text:POST-LAB QUESTIONS 1. When a reducing sugar reacts with Benedict reagent, what organic product is formed besides Cu,0? Why is the formation of Cu,O significant in this test? 2. What chemical test is performed to indicate the completion of the hydrolysis of starch by acid? 3. The one end of starch is hemiacetal. Why it does not react with Benedict's reagent? 4. Circle and label hemiacetal and acetal in each of the following molecules. CHOH CH,OH CHOH CH,OH OH CH,OH Lactose Sucrose
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