Multiple Choice
In plant tissue, what is the primary function of the cell wall in a plant cell?
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18. Cell Junctions and Tissues
Plant Tissue
Multiple Choice
Plant cell walls contain which of the following polysaccharides in abundance?
A
Chitin
B
Glycogen
C
Cellulose
D
Peptidoglycan
Verified step by step guidance1
Understand that plant cell walls are primarily composed of structural polysaccharides that provide rigidity and support to the cell.
Recall the common polysaccharides and their biological sources: Chitin is found in fungal cell walls and exoskeletons of arthropods; Glycogen is an energy storage polysaccharide in animals; Peptidoglycan is a major component of bacterial cell walls.
Identify that Cellulose is a polysaccharide made of glucose units linked by β-1,4-glycosidic bonds, forming long chains that provide structural strength to plant cell walls.
Recognize that among the options given, Cellulose is the polysaccharide abundant in plant cell walls, distinguishing it from the others which are found in different organisms or serve different functions.
Conclude that the correct answer is Cellulose because it is the primary structural polysaccharide in plant cell walls.
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