HUMAN NUTRITION

Detailed explanation-1: -Plant cells are surrounded by cell walls built largely from complex carbohydrates. The primary walls of growing plant cells consist of interdependent networks of three polysaccharide classes: cellulose, cross-linking glycans (also known as hemicelluloses), and pectins.

Detailed explanation-2: -It is a polysaccharide or complex carbohydrate made up of hundreds to thousands of glucose molecules linked together to form a chain. Plants, algae, bacteria, and other microorganisms produce cellulose, whereas animals do not.