Humans can't digest roughage (eg. cellulose) because of the beta linkages that hold the glucose molecules together. Humans don't have enzymes that can break these linkages.
Roughage Is A Food Which Is High In Fibre Which The Digestive System Cannot Digest As Easy As Other Foods.
Fiber
Roughage covers many different types of fiber. Cellulose is a fiber. Roughage is a dietary fiber, called cellulose that is the part of a plant that cannot be digested by the human digestive system. Roughage retains water and adds bulk to food. Roughage helps correct large intestine disorders and keeps it functioning normally.
It is Cellulose
No. Tissues are made of paper which is made from cellulose which humans cannot digest.
Humans lack the necessary enzyme to digest cellulose, so it acts as roughage in the intestines and helps with the digestion process
Celulose. Some humans also cannot digest lactose aka someone who is lactose intolerant.
It takes the toxins out of the food
No, humans cannot ingest any counties, Irish or not.
Complex answer: Cellulose is a polysaccharide that provides structural support for plants. Humans cannot digest cellulose. Thus, you cannot digest wood, which is mostly cellulose. :Simple answer Humans cannot digest the carbohydrate cellulose. Soures:AP biology class, Textbook :3
mostly because donkeys cant digest it
Humans can digest starch because they produce an enzyme called amylase that can break down starch into simpler sugars. However, humans lack the enzyme needed to break down cellulose, which is a complex carbohydrate found in plant cell walls. This is why humans cannot digest cellulose.