Question

explain the digestive tract in human beings?​

Answer 1

Hope this one will help you.......

First comes the ingesion. when we take in food it arrives to our digestive tract. Salivary glands secret saliva on to the food. The salivary amaylase break down food into simple substances, ( carbohydrates- simple sugar).

The food is partially digested in our mouth. Then it arrives to the oesophagus. By the help of peristaltic movement goes to the stomach. In stomach, it releases HCl acid to digest food. Along with it the gastric gland releases 3 juices, Gastric juice, pepsin, and mucus. In this gastric juice digests carbohydrates, pepsin digests all protien

Answer 2

1. sac-like digestive system

• A sac-like digestive system has a single opening. Food travels into it through that, gets digested and excreta comes out of the same opening. For example, Platyhelminthes. This is also known as a digestive cavity.

1. Tube-like digestive system

• In a tube-like digestive system there are two openings. The food enters through one, gets digested and moves out of the other one in the form of excreta, after the digestion is done. Human beings have this type of a digestive system. this is also known as a digestive tract.