Question

In plant cells, the cell wall has abundance of which polysaccharide?

• A. Chitin
• B. Cellulose
• C. Starch
• D. Glycogen

Hint:

Remember the distinct roles of major polysaccharides: Cellulose = Structure in plants; Chitin = Structure in fungi/insects; Starch = Energy storage in plants; Glycogen = Energy storage in animals.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
The question asks to identify the most abundant polysaccharide that forms the structural component of a plant cell wall.

Step 2: Detailed Explanation:
Let's analyze the options:
\[\begin{array}{rl} \bullet & \text{Chitin: This is a structural polysaccharide found in the cell walls of fungi and the exoskeletons of arthropods. It is not a primary component of plant cell walls. } \\ \bullet & \text{Cellulose: This is a long-chain polysaccharide made of glucose units. It is the primary structural component of plant cell walls, providing rigidity and strength. It is the most abundant organic polymer on Earth. } \\ \bullet & \text{Starch: This is the main energy storage polysaccharide in plants, typically found as granules within the cytoplasm and plastids (like chloroplasts and amyloplasts), not as a primary structural part of the cell wall. } \\ \bullet & \text{Glycogen: This is the main energy storage polysaccharide in animals and fungi. } \\ \end{array}\] Therefore, cellulose is the polysaccharide found in abundance in plant cell walls.

Step 3: Final Answer:
The cell wall in plant cells has an abundance of Cellulose.