Question

Identify the polysaccharide among the following:

• A. Fructose
• B. Maltose
• C. Glucose
• D. Cellulose

Hint:

Examples of polysaccharides: Starch, Glycogen, Cellulose. All are polymers of glucose.

Answer 1

The Correct Option is D

Concept: Carbohydrates are classified based on the number of monosaccharide units:

• 
  Monosaccharides – Single sugar unit (e.g., glucose, fructose)
• 
  Disaccharides – Two sugar units (e.g., maltose)
• 
  Polysaccharides – Large number of monosaccharide units (e.g., starch, cellulose)

Step 1: Analyze each option.
(A) Fructose: Monosaccharide (simple sugar).
(B) Maltose: Disaccharide composed of two glucose units.
(C) Glucose: Monosaccharide.
(D) Cellulose: Polymer of \( \beta \)-D-glucose units linked by \( \beta(1 \rightarrow 4) \) glycosidic bonds. It is a structural polysaccharide found in plant cell walls.
Step 2: Conclusion. \[ \therefore \text{Polysaccharide = Cellulose} \]