What is meant by digestive and where does it occur?

What is meant by digestive and where does it occur?

Anatomical terminology. Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma. In certain organisms, these smaller substances are absorbed through the small intestine into the blood stream.

What is meant by digestion ans?

: the action, process, or power of digesting: such as. a : the process of making food absorbable by mechanically and enzymatically breaking it down into simpler chemical compounds in the digestive tract.

What is the process of the digestion?

The processes of digestion include six activities: ingestion, propulsion, mechanical or physical digestion, chemical digestion, absorption, and defecation. The first of these processes, ingestion, refers to the entry of food into the alimentary canal through the mouth.

What is digestion in biology?

digestion, sequence by which food is broken down and chemically converted so that it can be absorbed by the cells of an organism and used to maintain vital bodily functions.

Which is the best dictionary definition of digestion?

See more synonyms for digestion on Thesaurus.com. noun. the process in the alimentary canal by which food is broken up physically, as by the action of the teeth, and chemically, as by the action of enzymes, and converted into a substance suitable for absorption and assimilation into the body.

Where does digestion take place in the human body?

In humans and other higher vertebrates, digestion takes place mainly in the small intestine. In protists and some invertebrates, digestion occurs by phagocytosis. The decomposition of organic material, such as sewage, by bacteria. The American Heritage® Science Dictionary Copyright © 2011.

How is food broken down in the digestive system?

However, chemical digestion means food is broken down into small molecules by chemical energy. One big part of chemical digestion involves the enzymes located in stomach. They begin to break down food as soon as it enters the stomach. Chemical digestion actually starts in the mouth when our saliva mixes in with the food.

Which is a major part of mechanical digestion?

Mechanical digestion involves the process of physically breaking down the food into ever smaller parts. The major player in mechanical digestion is mastication, which is the act of chewing and using the teeth to break the food into pieces small enough to be swallowed into the esophagus.