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
Ch.13 Carbohydrates
Timberlake13th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9780134421353
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Table of contents
- Ch.1 Chemistry in Our Lives11
- Ch.2 Chemistry and Measurements80
- Ch.3 Matter and Energy54
- Ch.4 Atoms and Elements51
- Ch.5 Nuclear Chemistry42
- Ch.6 Ionic and Molecular Compounds57
- Ch.7 Chemical Quantities and Reactions41
- Ch.8 Gases29
- Ch.9 Solutions51
- Ch.10 Acids and Bases and Equilibrium65
- Ch.11 Introduction to Organic Chemistry: Hydrocarbons78
- Ch.12 Alcohols, Thiols, Ethers, Aldehydes, and Ketones83
- Ch.13 Carbohydrates54
- Ch.14 Carboxylic Acids, Esters, Amines, and Amides90
- Ch.15 Lipids61
- Ch.16 Amino Acids, Proteins, and Enzymes84
- Ch.17 Nucleic Acids and Protein Synthesis83
- Ch.18 Metabolic Pathways and ATP Production67
Timberlake13th EditionChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9780134421353Not the one you use?Change textbook
Chapter 13, Problem 50d
Give the name of one or more polysaccharides that matches each of the following descriptions:
d. produces maltose during digestion
Verified step by step guidance1
Understand the problem: The question asks for a polysaccharide that, when digested, produces maltose. Maltose is a disaccharide composed of two glucose units linked by an α(1→4) glycosidic bond.
Recall the structure of polysaccharides: Polysaccharides are long chains of monosaccharides (like glucose) linked by glycosidic bonds. Some polysaccharides can be broken down into smaller units, such as disaccharides, during digestion.
Identify the polysaccharide that produces maltose: Starch is a polysaccharide made of glucose units linked by α(1→4) glycosidic bonds. During digestion, enzymes like amylase break down starch into maltose.
Consider the components of starch: Starch consists of two components—amylose (a linear polymer of glucose) and amylopectin (a branched polymer of glucose). Both components can produce maltose during digestion.
Conclude the answer: The polysaccharide that produces maltose during digestion is starch, which includes amylose and amylopectin as its components.
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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. Understanding their structure and function is essential for identifying specific polysaccharides based on their digestion products.
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1:24
Polysaccharides Example 1
Maltose
Maltose is a disaccharide composed of two glucose molecules linked by an α(1→4) glycosidic bond. It is produced during the digestion of starch and glycogen by the enzyme amylase. Recognizing maltose's formation is crucial for linking polysaccharides to their digestive processes, particularly in carbohydrate metabolism.
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0:50Types of Disaccharides Example 1
Amylase
Amylase is an enzyme that catalyzes the hydrolysis of starch into sugars, primarily maltose. It is found in saliva and the pancreas, playing a vital role in carbohydrate digestion. Understanding the function of amylase helps in identifying which polysaccharides yield maltose during digestion, as it breaks down complex carbohydrates into simpler sugars.
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0:50Intro To Carbohydrate Metabolism Example 1
Related Practice
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. contains only ß(1→4)-glycosidic bonds
Textbook Question
Isomaltose, obtained from the breakdown of starch, has the following Haworth structure:
a. Is isomaltose a mono-, di-, or polysaccharide?
Textbook Question
Isomaltose, obtained from the breakdown of starch, has the following Haworth structure:
b. What are the monosaccharides in isomaltose?
Textbook Question
Isomaltose, obtained from the breakdown of starch, has the following Haworth structure:
d. Is this the α or β isomer of isomaltose?