Cellulose - GCSE Chemistry Definition

Cellulose is a large, complex carbohydrate molecule that serves as a primary structural component in the cell walls of plants. It is made up of long chains of glucose units linked together, forming a strong fibrous substance. In the context of GCSE Chemistry, cellulose is important because it is a natural polymer and illustrates how smaller units, like glucose, can bond to form larger macromolecules.

It is an insoluble substance and is a key component of dietary fibre, providing rigidity and strength to plant structures, which in turn allows them to stand upright and grow. Understanding cellulose helps students grasp essential concepts about the structure and function of different materials and the role of biopolymers in the natural world.