QS Study

The toad lives on worms, insects etc. The cells of the body cannot assimilate these food substances directly. Hence digestion of food material is required. The system which takes part to perform this work is called the digestive system. The digestive system of toad consists of digestive tract and the accessory organs which help to process the food consumed into small molecules (nutrients) which then can be easily absorbed and then utilized by the cells of the body. Parts of the digestive system of a frog includes Mouth, Pharynx, Oesophagus, Stomach, Small intestine, Large intestine, Cloaca and Accessory organs.


Fig: the Digestive system of Toad

In other words, the system by which food is ingested, digested, absorbed and the undigested portion is ejaculated from the body as faeces are called the digestive system. The digestive system of the toad can be divided into two parts such as Alimentary canal and Digestive Glands.