This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET Jan 2020, Subject name: Biochemistry
Which absorbs least water? 
Select and explain. 
A. Mucilage, B. Cellulose, C. Gums, D. Pectin
B: Cellulose
Answer: B: Cellulose 
Explanation: Cellulose: It is unbranched, non-starch homopolysaccharide It is made up of b - Glucose Acts as FIBRES in the diet Cellulose is present in the cell walls of plants and other organisms FIBRES 2 TYPES: INSOLUBLE SOLUBLE Cellulose, Hemicellulose Excreted unchanged. Thus, it absorbs least water Pectins, Gums Absorbs H2O& conveed to Gel form, which is excreted