The Question is from neet-botany biomolecules-biology , and it was created by the author B VENKAT

Question

Which polysaccharide provides structural support to plant cell walls?

B VENKAT · Accepted Answer

## CORE INFORMATION
✓ **Answer**: D
## CONCEPT FRAMEWORK
 **Primary Concept**: Polysaccharide structure and function in plants
 **Related Topics**: Carbohydrates, plant cell structure, cell wall components
 **Prerequisites**: Basic understanding of polysaccharides and their roles.
## SOLUTION PATHWAY
**Given Information**:
  The question asks about the polysaccharide responsible for structural support in plant cell walls.
**Method & Steps**:
 1. Identify the polysaccharides listed as options: Starch, Glycogen, Inulin, and Cellulose.
  Reasoning: We need to determine which of these is a primary component of plant cell walls.
 2. Recall the functions of each polysaccharide:
  Starch: Energy storage in plants.
  Glycogen: Energy storage in animals.
  Inulin: A type of fructan (fructose polymer) used for energy storage in some plants.
  Cellulose: A structural polysaccharide forming the main component of plant cell walls.
  Working: Cellulose is a linear polymer of glucose units linked by β-1,4-glycosidic bonds, giving it a rigid structure suitable for providing support.  The other polysaccharides have different linkages and structures suited to energy storage rather than structural support.
 3. Conclude that Cellulose is the correct answer.
  Result: Cellulose
  Verification: This aligns with the established knowledge of plant cell wall composition.
 ## OPTION ANALYSIS
A :x: Starch is a storage polysaccharide in plants, not a structural component of cell walls.
B :x: Glycogen is a storage polysaccharide in animals.
C :x: Inulin is a storage polysaccharide found in some plants.
D ✓: Cellulose is the primary structural component of plant cell walls, providing rigidity and support.
 ## LEARNING AIDS
 **Common Mistakes**:
  1.Confusing storage polysaccharides (starch, glycogen, inulin) with structural polysaccharides (cellulose, chitin): Focus on the function of each polysaccharide.
  2.Not recalling the specific linkages in cellulose (β-1,4-glycosidic bonds) that contribute to its structural properties: Understanding the chemical structure is key.
 **Quick Tips**:
  1.Remember the key function of cellulose: structural support in plants.
  2.Associate cellulose with the rigidity of plant cell walls.

B VENKAT · Answer

Starch

B VENKAT · Answer

Glycogen

B VENKAT · Answer

Inulin

B VENKAT · Answer

The correct Option is "Cellulose"

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