Organic Chemistry
4th Edition
ISBN: 9780073402772
Author: Janice G. Smith
Publisher: MCG
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Chapter 28, Problem 28.18P
Interpretation Introduction
(a)
Interpretation: The
Concept introduction: The characteristic bond of glycoside is
Interpretation Introduction
(b)
Interpretation: The aglycon and monosaccharides formed by the hydrolysis of rebaudioside A are to be predicted.
Concept introduction: The characteristic bond of glycoside is
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Draw the structure of: (a) a polysaccharide formed by joining D-mannose units in 1->4-ß-glycosidic linkages; (b) a polysaccharide formed by joining D-glucose units in 1->6-a-glycosidic linkages. The polysaccharide in (b) is dextran, a component of dental plaque.
Cellobiose, a disaccharide obtained by the hydrolysis of cellulose, is composed of two glucose units joined together in a 1→4-β-glycoside bond. What is the structure of cellobiose?
Which statement about saccharides is correct?
(A). Alpha anomers are more common than beta anoomers.
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Chapter 28 Solutions
Organic Chemistry
Ch. 28 - Prob. 28.1PCh. 28 - Prob. 28.2PCh. 28 - Label each stereogenic center as R or S. a. b. c....Ch. 28 - Convert the ball-and-stick model to a Fischer...Ch. 28 - Prob. 28.5PCh. 28 - Prob. 28.6PCh. 28 - Prob. 28.7PCh. 28 - Prob. 28.8PCh. 28 - Prob. 28.9PCh. 28 - Prob. 28.10P
Ch. 28 - Prob. 28.11PCh. 28 - Prob. 28.12PCh. 28 - Prob. 28.13PCh. 28 - Prob. 28.14PCh. 28 - Prob. 28.15PCh. 28 - Prob. 28.16PCh. 28 - Draw a stepwise mechanism for the following...Ch. 28 - Prob. 28.18PCh. 28 - Prob. 28.19PCh. 28 - Prob. 28.20PCh. 28 - Prob. 28.21PCh. 28 - Draw the products formed when D-arabinose is...Ch. 28 - Prob. 28.23PCh. 28 - Prob. 28.24PCh. 28 - Prob. 28.25PCh. 28 - Prob. 28.26PCh. 28 - Prob. 28.27PCh. 28 - Prob. 28.28PCh. 28 - Prob. 28.29PCh. 28 - Prob. 28.30PCh. 28 - Prob. 28.31PCh. 28 - Prob. 28.32PCh. 28 - Prob. 28.33PCh. 28 - Prob. 28.34PCh. 28 - Problem-28.35
Draw the structures of the...Ch. 28 - Prob. 28.36PCh. 28 - 28.37 Convert each ball-and-stick model to a...Ch. 28 - Prob. 28.38PCh. 28 - Prob. 28.39PCh. 28 - Convert each compound to a Fischer projection and...Ch. 28 - Prob. 28.41PCh. 28 - Prob. 28.42PCh. 28 - Prob. 28.43PCh. 28 - Prob. 28.44PCh. 28 - Prob. 28.45PCh. 28 - Draw both pyranose anomers of each aldohexose...Ch. 28 - Prob. 28.47PCh. 28 - Prob. 28.48PCh. 28 - Prob. 28.49PCh. 28 - Prob. 28.50PCh. 28 - Prob. 28.51PCh. 28 - Prob. 28.52PCh. 28 - Prob. 28.53PCh. 28 - What products are formed when each compound is...Ch. 28 - Prob. 28.55PCh. 28 - Prob. 28.56PCh. 28 - Prob. 28.57PCh. 28 - Prob. 28.58PCh. 28 - 28.58 Draw a stepwise mechanism for the following...Ch. 28 - Prob. 28.60PCh. 28 - Prob. 28.61PCh. 28 - Prob. 28.62PCh. 28 - Prob. 28.63PCh. 28 - Prob. 28.64PCh. 28 - Prob. 28.65PCh. 28 - Prob. 28.66PCh. 28 - Prob. 28.67PCh. 28 - Prob. 28.68PCh. 28 - Prob. 28.69PCh. 28 - Prob. 28.70PCh. 28 - Prob. 28.71PCh. 28 - Prob. 28.72PCh. 28 - Prob. 28.73PCh. 28 - Prob. 28.74PCh. 28 - Prob. 28.75PCh. 28 - Prob. 28.76PCh. 28 - Prob. 28.77PCh. 28 - Draw a stepwise mechanism for the following...Ch. 28 - Prob. 28.79P
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- 3. A(n) is a molecule that is synthesized in one part of the body and has an effect in a different part. A) fatty acid B) enzyme C) hormone D) vitamin 4. DNA is a double-stranded nucleic acid that exists as a double helix. Which is responsible for holding the double helix of DNA together? A) Phosphodiester bonds between complementary base pairs on each strand B) B-N-glycosidic linkages between the sugar-phosphate backbone of each strand C) Disulfide bonds between the cysteine residues on each strand D) Hydrogen bonding between complementary bases on each strand 5. Which type of inhibitor is most likely to bind somewhere other than an enzyme's active site? A) competitive B) lock and key C) noncompetitive D) substrate 6. The compound shown below is best classified as what type of lipid? HO, A) Triacylglycerol B) Soap C) Fatty acid D) Waxarrow_forwardMonosaccharides are cyclic hemiacetals that can react with alcohols to form acetals. The bond between the anomeric carbon atom of the monosaccharide and the oxygen atom of the -OR group is called a glycosidic bond. The name of the linkage contains the designation alpha (a) or beta (B) (from the anomeric carbon in the glycosidic bond) and the carbon numbers for the carbons from the two sugars. For this example, the linkage is an a-1,4 glycosidic bond. Н НО HO اب تاب است H OH H OH -OH Н Н OH H + OH HO a anomer CH₂OH H Н H О OH H2C OH Н H Classify the glycosidic linkage in the disaccharide. Н OH Н H OH OH OH - HO Н H HO OH OH Н CH₂OH H -OH H OH он H H -OH Н OH an a glycosidic bond Н OH + H2O о о о о В-1,6 a-1,6 a-1,1 B-1,5 I DON'T KNOW YET submitarrow_forwardDraw the structure of b-D-galactose molecule using (a) Fischer projectionarrow_forward
- Q3: Use arrows to match the terms (A) column with (B) column. Some may be used more than once and others not at all. 1- Tirglyceride 2- Glycogen 3- Sphingomyelins 4- Membranes 5- Starch 6- Proteins 7- Cholesterol 8- Lactose B a- contain glycerol backbone b- glucose é- amino acids d- esters of fatty acids e- octapeptide f- disaccharide g- polysaccharide K- compound lipids i- steroid-like j- lipids k- polar lipids + glucose storage in animals 9- Waxes 10AngiotensinlIarrow_forwardDraw the structure of an optically active fat that, when hydrolyzed under acidic conditions.arrow_forwardCellulose is treated with methanol, which methylates the reducing end of polysaccharides. (a) How many methyl groups would be incorporated per cellulose chain? Explain. (b) Relative to cellulose, how many methyl groups would be incorporated in a molecule of amylopectin? (more, less or the same?) Explain. (c) Cellulose is treated with dimethyl sylfate, which adds a methyl group to all free hydroxyl groups. The cellulose is then hydrolyzed to release all of its monosacharides. Draw the structure of the resulting monosaccharidearrow_forward
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