Textbook Question
Isomaltose, obtained from the breakdown of starch, has the following Haworth structure:
b. What are the monosaccharides in isomaltose?
Ch.13 Carbohydrates
Timberlake14th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9781292472249
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Table of contents
- Ch.1 Chemistry in Our Lives19
- Ch.2 Chemistry and Measurements80
- Ch.3 Matter and Energy53
- Ch.4 Atoms and Elements58
- Ch.5 Nuclear Chemistry42
- Ch.6 Ionic and Molecular Compounds57
- Ch.7 Chemical Quantities and Reactions38
- Ch.8 Gases30
- Ch.9 Solutions50
- Ch.10 Acids and Bases and Equilibrium64
- Ch.11 Introduction to Organic Chemistry: Hydrocarbons77
- Ch.12 Alcohols, Thiols, Ethers, Aldehydes, and Ketones82
- Ch.13 Carbohydrates54
- Ch.14 Carboxylic Acids, Esters, Amines, and Amides91
- Ch.15 Lipids61
- Ch.16 Amino Acids, Proteins, and Enzymes84
- Ch.17 Nucleic Acids and Protein Synthesis86
- Ch.18 Metabolic Pathways and ATP Production73
Timberlake14th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9781292472249Not the one you use?Change textbook
Chapter 13, Problem 50c
Give the name of one or more polysaccharides that matches each of the following descriptions:
b. contains only ß(1→4)-glycosidic bonds
Verified step by step guidance1
Step 1: Understand the structure of polysaccharides. Polysaccharides are long chains of monosaccharides linked by glycosidic bonds. The type of glycosidic bond determines the structure and function of the polysaccharide.
Step 2: Recall the specific glycosidic bond mentioned in the problem. A ß(1→4)-glycosidic bond means that the bond connects the first carbon (C1) of one monosaccharide in the beta configuration to the fourth carbon (C4) of the next monosaccharide.
Step 3: Identify polysaccharides that exclusively contain ß(1→4)-glycosidic bonds. One example is cellulose, which is composed of glucose units linked by ß(1→4)-glycosidic bonds.
Step 4: Consider the structural implications of ß(1→4)-glycosidic bonds. These bonds result in a straight, rigid structure, which is why cellulose forms strong fibers and is a major component of plant cell walls.
Step 5: Conclude that cellulose is a polysaccharide that matches the description provided in the problem, as it contains only ß(1→4)-glycosidic bonds.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Polysaccharides
Polysaccharides are long chains of monosaccharide units linked by glycosidic bonds. They serve various functions in living organisms, including energy storage and structural support. Common examples include starch, glycogen, and cellulose, each differing in their monomer composition and bond types.
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1:24
Polysaccharides Example 1
Glycosidic Bonds
Glycosidic bonds are covalent linkages formed between monosaccharides during the process of glycosylation. The type of glycosidic bond, such as α or ß, determines the structural properties and digestibility of the polysaccharide. For instance, ß(1→4)-glycosidic bonds are characteristic of cellulose, which is not digestible by humans.
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1:44Glycosidic Linkage Formation Concept 1
Cellulose
Cellulose is a polysaccharide composed of β(1→4)-linked glucose units, forming a linear structure that provides rigidity to plant cell walls. Its unique bonding structure makes it insoluble in water and resistant to enzymatic breakdown, which is why it serves as a crucial component of dietary fiber in human nutrition.
Related Practice
Textbook Question
Give the name of one or more polysaccharides that matches each of the following descriptions:
d. produces maltose during digestion
Textbook Question
Give the name of one or more polysaccharides that matches each of the following descriptions:
a. not digestible by humans
Textbook Question
Isomaltose, obtained from the breakdown of starch, has the following Haworth structure:
a. Is isomaltose a mono-, di-, or polysaccharide?
Textbook Question
Give the name of one or more polysaccharides that matches each of the following descriptions:
c. contains only α(1→4)-glycosidic bonds
Textbook Question
Give the name of one or more polysaccharides that matches each of the following descriptions:
b. the storage form of carbohydrates in plants