EBK FUNDAMENTALS OF GENERAL, ORGANIC, A
8th Edition
ISBN: 8220102895805
Author: Peterson
Publisher: PEARSON
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Chapter 20, Problem 20.53AP
Interpretation Introduction
Interpretation:
The structure of product formed along with sorbitol in the reduction of D-fructose has to be drawn.
Concept introduction:
The reduction of D-fructose forms two alcohols; sorbitol is one of the products.
The structure of sorbitol is,
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Why is sucrose a non-reducing sugar with Benedict’s solution while lactose is a reducing sugar under the same condition?
Draw both possible disaccharides of D-psicose and D-mannose that are joined by an α(1→4) glycosidic linkage. Are either of them now a reducing sugar?
Give the systematic name for the disaccharide shown in the image by selecting the appropriate terms.
H
НО
HO
НО
но
H
H
The systematic name is
The common name is
ОН
I
maltose →
нно
HO
a-D-glucopyranosyl
H
I
-(1 →→
но
OH
4- )-
ОН
I
a-D-glucopyranose
Chapter 20 Solutions
EBK FUNDAMENTALS OF GENERAL, ORGANIC, A
Ch. 20.1 - Classify the following monosaccharides as an...Ch. 20.1 - Prob. 20.2PCh. 20.2 - Prob. 20.3PCh. 20.2 - Prob. 20.4PCh. 20.2 - Prob. 20.6PCh. 20.3 - D-Talose, a constituent of certain antibiotics,...Ch. 20.3 - Prob. 20.8PCh. 20.3 - Draw the structure that completes the mutarotation...Ch. 20.4 - Prob. 20.10KCPCh. 20.4 - Prob. 20.11P
Ch. 20.4 - Prob. 20.12PCh. 20.4 - Prob. 20.13PCh. 20.4 - Prob. 20.1CIAPCh. 20.4 - Prob. 20.2CIAPCh. 20.4 - All cells in your body contain glycoproteins...Ch. 20.5 - Draw the structure of the and anomers that...Ch. 20.6 - Prob. 20.15PCh. 20.6 - Prob. 20.16PCh. 20.6 - Prob. 20.17KCPCh. 20.7 - Prob. 20.4CIAPCh. 20.7 - Prob. 20.5CIAPCh. 20.7 - Prob. 20.6CIAPCh. 20.7 - Prob. 20.7CIAPCh. 20.7 - Prob. 20.18PCh. 20.7 - Prob. 20.19PCh. 20.7 - Prob. 20.8CIAPCh. 20.7 - Prob. 20.9CIAPCh. 20.7 - Prob. 20.10CIAPCh. 20 - During the digestion of starch from potatoes, the...Ch. 20 - Prob. 20.21UKCCh. 20 - Consider the trisaccharide A, B, C shown in...Ch. 20 - Hydrolysis of both glycosidic bonds in the...Ch. 20 - Prob. 20.24UKCCh. 20 - Are one or more of the disaccharides maltose,...Ch. 20 - Prob. 20.26UKCCh. 20 - Prob. 20.27UKCCh. 20 - Prob. 20.28APCh. 20 - What is the family-name ending for a sugar?Ch. 20 - Prob. 20.30APCh. 20 - Classify the four carbohydrates (a)(d) by...Ch. 20 - Prob. 20.32APCh. 20 - How many chiral carbon atoms are there in each of...Ch. 20 - Prob. 20.34APCh. 20 - Prob. 20.35APCh. 20 - Name four important monosaccharides and tell where...Ch. 20 - Prob. 20.37APCh. 20 - Prob. 20.38APCh. 20 - What is the structural relationship between...Ch. 20 - Prob. 20.40APCh. 20 - In Section 15.6, you saw that aldehydes react with...Ch. 20 - Sucrose and D-glucose rotate plane-polarized light...Ch. 20 - Prob. 20.43APCh. 20 - Prob. 20.44APCh. 20 - Prob. 20.45APCh. 20 - What is mutarotation? Do all chiral molecules do...Ch. 20 - What are anomers, and how do the anomers of a...Ch. 20 - What is the structural difference between the ...Ch. 20 - D-Gulose, an aldohexose isomer of glucose, has the...Ch. 20 - Prob. 20.50APCh. 20 - In its open-chain form, D-altrose has the...Ch. 20 - Prob. 20.52APCh. 20 - Prob. 20.53APCh. 20 - Prob. 20.54APCh. 20 - Prob. 20.55APCh. 20 - What is the structural difference between a...Ch. 20 - What are glycosides, and how can they be formed?Ch. 20 - Prob. 20.58APCh. 20 - Prob. 20.59APCh. 20 - Give the names of three important disaccharides....Ch. 20 - Lactose and maltose are reducing disaccharides,...Ch. 20 - Amylose (a form of starch) and cellulose are both...Ch. 20 - Prob. 20.63APCh. 20 - Prob. 20.64APCh. 20 - Prob. 20.65APCh. 20 - Gentiobiose, a rare disaccharide found in saffron,...Ch. 20 - Prob. 20.67APCh. 20 - Prob. 20.68APCh. 20 - Prob. 20.69APCh. 20 - Amylopectin (a form of starch) and glycogen are...Ch. 20 - What is the physiological purpose of starch in a...Ch. 20 - Prob. 20.72APCh. 20 - Prob. 20.73APCh. 20 - Prob. 20.74CPCh. 20 - Prob. 20.75CPCh. 20 - Prob. 20.76CPCh. 20 - Prob. 20.77CPCh. 20 - Prob. 20.78CPCh. 20 - Write the open-chain structure of the only...Ch. 20 - Prob. 20.80CPCh. 20 - Prob. 20.81CPCh. 20 - When a person cannot digest galactose, its reduced...Ch. 20 - Describe the differences between mono-, di-, and...Ch. 20 - Prob. 20.84CPCh. 20 - Prob. 20.85CPCh. 20 - Many people who are lactose intolerant can eat...Ch. 20 - Prob. 20.87GPCh. 20 - Prob. 20.88GPCh. 20 - Prob. 20.89GP
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- Raffinose, the most abundant trisaccharide found in nature, occurs in whole grains and numerous vegetables (e.g., asparagus, cabbage, and beans). Hydrolysis of raffinose yields galactose and sucrose. Provide the systematic name for this trisaccharide. Is raffinose a reducing or nonreducing sugar? Is raffinose capable of mutarotation?arrow_forwardGiven the active site diagram below, which circled component coordinates the cofactor? 1 5 NH+ Mn²+ 3 4 2 5 1 *H3N. N H₂ HN O NH₂+ Mn²+ -3arrow_forwardThe sucrose substitute tagatose is produced by hydrolyzing lactose and then chemically converting one of the two resulting aldoses to a ketose. Which residue of lactose gives rise to tagatose?arrow_forward
- What is the energy expenditure for synthesizing a hexose ?arrow_forwardD-Talose is a C2 epimer of D-galactose. Using the Fischer projection structure, draw the product of reaction ofD-talose with the given reagent or enzyme and write the systematic name of the product. 1. 2,4-DNP 2. Reaction with aminotransferase and then acetyltransferase at C4arrow_forwardWhich of the following is a property of both D-altrose and D-talose?arrow_forward
- Draw the structure of malibiose a sugar found in plants and answer the following question: a) What two monosaccharides are formed on hydrolysis of melibiose? b) Is melibiose a reducing sugar? Explain. c) Describe the glycosidic linkage between the two mono- saccharide units.arrow_forwardIs sucrose a reducing or non-reducing sugar? Explain. Is lactose a reducing non reducing sugar? Explain.arrow_forwardWhich of the following is the correct systematic name of the disaccharide shown? α-D-glucopyranosyl-(1→3)-β-D-galactopyranose α-D-gulopyranosyl-(1→4)-β-D-glucopyranose α-D-gulopyranosyl-(1→4)-β-D-galactopyranose α-D-glucopyranosyl-(1→3)-β-D-glucopyranosearrow_forward
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