Construct the following Carbohydrates: 1. Beta-D-Galactopyranosyl(1-4)-Beta-D-Glucopyranose ( Lactose) 2. SAlpha-D-Glucopyranosyl(1-2)-Beta-D-Fructofuranoside ( Sucrose) 3. Based on the structures in No.1 and No.2, why is it that Lactose is a reducing sugar while Sucrose is not a reducing sugar?
Construct the following Carbohydrates: 1. Beta-D-Galactopyranosyl(1-4)-Beta-D-Glucopyranose ( Lactose) 2. SAlpha-D-Glucopyranosyl(1-2)-Beta-D-Fructofuranoside ( Sucrose) 3. Based on the structures in No.1 and No.2, why is it that Lactose is a reducing sugar while Sucrose is not a reducing sugar?
Introductory Chemistry: A Foundation
9th Edition
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Donald J. DeCoste
Chapter21: Biochemistry
Section: Chapter Questions
Problem 6ALQ
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Question
Construct the following Carbohydrates:
1. Beta-D-Galactopyranosyl(1-4)-Beta-D-Glucopyranose ( Lactose)
2. SAlpha-D-Glucopyranosyl(1-2)-Beta-D-Fructofuranoside ( Sucrose)
3. Based on the structures in No.1 and No.2, why is it that Lactose is a reducing sugar while Sucrose is not a reducing sugar?
4. Amylose- Alpha-D-Glucose(1-4) linked chain
5. Amylopectin- Alpha-D-Glucose(1-4) branched in Alpha (1-6) linked chain ( branched every 24-30 Glc)
6. Glycogen- Alpha-D-Glucose(1-4) branched in Alpha(1-6) linked chain ( branched every 8 to 12 glucose residues)
7. Cellulose- Beta-D-Glucose(1-4) linked chain with Glucose inverted with respect to each other
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