(a)
Interpretation: The source of starch is to be stated.
Concept Introduction: Starch is a polysaccharide formed by linking numerous glucose monomers.
(a)
Answer to Problem 14LC
Plants are the source of starch.
Explanation of Solution
Starch comes from a variety of plants, which use this polysaccharide as a primary energy source. Potatoes, rice, wheat, cassava, corn, and peas are the most common sources of starch.
(b)
Interpretation: The source of cellulose is to be stated.
Concept Introduction: Cellulose is a polysaccharide made up of numerous glucose monomers linked together.
(b)
Answer to Problem 14LC
The sources of cellulose include cotton and plant structural materials.
Explanation of Solution
Cellulose is the most abundant type of biological molecule found on the earth. Cotton and other plant materials that serve as structural components, such as wood and other plant cell walls, are the main source of cellulose.
(c)
Interpretation: The source of glycogen is to be stated.
Concept Introduction: Glycogen is a polysaccharide formed by the linking of numerous glucose monomers.
(c)
Answer to Problem 14LC
Liver and animal muscle cells are the sources of glycogen.
Explanation of Solution
Although glycogen, starch, and cellulose all contain the same monomer units, how glucose is linked is distinct in these three polysaccharides. The liver and muscle cells of animals are the primary storage sites for glycogen. Hence, these organs are the main source of glycogen.
Chapter 24 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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