Question

Digestion can be divided in how many types? Name them.

Answer 1

Process of breakdown of large insoluble food particles into small water soluble particles which makes them absorbable into blood plasma is known as digestion. In most organisms the food particles are absorbed in the small intestine, into the bloodstream.

Complete answer:
Digestion is the process of breakdown of large insoluble food particles into small water soluble particles which makes them absorbable into blood plasma. Small intestine is an organ where the food particles are absorbed into blood. This is a catabolic process in which large complex molecules are broken down into smaller simpler molecules. These small simpler molecules can be easily absorbed into the bloodstream.

Digestion can be divided into two types: mechanical and chemical.
1. Mechanical digestion refers to the physical breakdown of large food particles into smaller ones with the help of digestive enzymes. It starts in the mouth by chewing and ends in the small intestine through segmentation contractions.
2. In chemical digestion, the enzymes help in the breakdown of molecules which the body can use.
In humans, the process of digestion starts in the mouth with chewing and mixing with saliva. Saliva contains salivary amylase which is a digestive enzyme and breaks the starch in food. Then food goes into the stomach by the process of peristalsis where it is acted with gastric juices which helps in the digestion of proteins. Then it moves to the duodenum of the small intestine where the nutrients are absorbed into the blood. And in the large intestine the water and minerals are reabsorbed into the colon part and the waste material is released outside the body through anus.

Note:
Process of breakdown of large insoluble food particles into small water soluble particles which makes them absorbable into blood plasma is known as digestion. Digestion can be divided into two types: mechanical and chemical. Mechanical digestion refers to the physical breakdown and chemical digestion refers to use of enzymes.