This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: nutrition and digestion, Subject name: Biochemistry
Dietary fibre contain 
Select and explain. 
A. Collagen, B. Pectin, C. Proteoglycans, D. Starch
B: Pectin
Answer: B: Pectin 
Explanation: Dietary fibre contains remnants of plant cells resistant to hydrolysis by the enzymes of alimentary canal. Fibre is basically composed of 2 categories : 1. Water insoluble components. 2 . Warer soluble components. 1. Water insoluble : Cellulose, Hemicellulose, Lignin 2. Water soluble : Pectins, Mucilagesn, Gums.