What are the changes that take place in large intestine during digestion of food?

Explanation

1) Digested food materials is taken up by the walls of small intestine. Rest of the food material passes to the large intestine.
2) In large intestine, most of the water is taken up from this food material.
3) This material is then expelled through the anus which is the last part of the alimentary canal.
4 ) This passage of undigested material from the body by the way of anus is called defecation.