Textbook Question
Describe the similarities and differences in the following:
a. amylose and cellulose
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 49b
Give the name of one or more polysaccharides that matches each of the following descriptions:
b. the storage form of carbohydrates in plants
Verified step by step guidance1
Understand the problem: The question asks for the name of a polysaccharide that serves as the storage form of carbohydrates in plants. Polysaccharides are long chains of monosaccharides linked by glycosidic bonds.
Recall the key concept: Plants store carbohydrates in the form of a specific polysaccharide that is composed of glucose units. This polysaccharide is used as an energy reserve.
Identify the polysaccharide: The storage form of carbohydrates in plants is primarily **starch**, which consists of two components: amylose (a linear chain of glucose molecules) and amylopectin (a branched chain of glucose molecules).
Relate the structure to its function: Starch is an efficient storage molecule because it is compact and can be broken down into glucose when the plant needs energy.
Conclude the answer: The polysaccharide that matches the description is starch, specifically its components amylose and amylopectin.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Polysaccharides
Polysaccharides are large, complex carbohydrates composed of long chains of monosaccharide units. They serve various functions in living organisms, including energy storage and structural support. Common examples include starch, glycogen, and cellulose, each playing distinct roles in biological processes.
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1:24
Polysaccharides Example 1
Starch
Starch is a polysaccharide that serves as the primary storage form of carbohydrates in plants. It is composed of two types of molecules: amylose and amylopectin. Starch is found in high concentrations in plant tissues such as tubers and seeds, providing energy for growth and development.
Carbohydrate Storage
Carbohydrate storage refers to the way organisms store excess glucose for later use. In plants, this is primarily achieved through the synthesis of starch, which can be broken down into glucose when energy is needed. This process is crucial for maintaining energy balance and supporting metabolic functions.
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1:29Classification of Carbohydrates Example 1
Related Practice
Textbook Question
Describe the similarities and differences in the following:
a. amylose and amylopectin
Textbook Question
Give the name of one or more polysaccharides that matches each of the following descriptions:
a. not digestible by humans
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
Give the name of one or more polysaccharides that matches each of the following descriptions:
d. produces maltose during digestion