Question

Which one of the following carbohydrates is insoluble in water?

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

Hint:

Cellulose is a polysaccharide that is insoluble in water, forming the structural component of plant cell walls.

Answer 1

The Correct Option is A

Step 1: Understanding cellulose.
Cellulose is a complex carbohydrate (polysaccharide) that is insoluble in water due to its molecular structure. It forms the structural component of plant cell walls.
Step 2: Analyzing the options.
(A) Cellulose: Correct — Cellulose is insoluble in water.
(B) Glucose: Incorrect — Glucose is soluble in water as it is a simple sugar.
(C) Lactose: Incorrect — Lactose, like glucose, is a sugar and is soluble in water.
(D) Fructose: Incorrect — Fructose is a sugar and is soluble in water.
Step 3: Conclusion.
The correct answer is (A) Cellulose, as cellulose is insoluble in water.