Multiple Choice
Cellulose fibers resemble ___________ in proteins; whereas amylose's structure is similar to _____________.
9. Carbohydrates
Starch
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Which of the following is a structural polysaccharide in plant cells?
A
Glycogen.
B
Amylose.
C
Chitin.
D
Starch.
E
Cellulose.
Verified step by step guidance1
Begin by understanding what a structural polysaccharide is. Structural polysaccharides are carbohydrates that provide support and protection to cells and tissues. In plants, they are crucial for maintaining cell wall integrity.
Review the list of options provided: Glycogen, Amylose, Chitin, Starch, and Cellulose. Identify which of these are known to be structural polysaccharides.
Recall that Glycogen is primarily a storage polysaccharide found in animals, not plants. Amylose is a component of starch, which is also a storage polysaccharide, not structural.
Consider Chitin, which is a structural polysaccharide but is found in the exoskeletons of arthropods and fungi, not in plant cells.
Recognize that Cellulose is the correct answer. It is a structural polysaccharide found in the cell walls of plants, providing rigidity and strength. Cellulose is composed of β-glucose units linked by β(1→4) glycosidic bonds, forming long chains that bundle together to form fibers.
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