Question

Define the following:-

Egestion
Animal nutrition
Ingestion
Assimilation
Absorbtion

Answer 1

Egestion is the discharge or expulsion of undigested material (food) from a cell in case of unicellular organisms, and from the digestive tract via the anus in case of multicellular organisms.

Animal nutrition focuses on the dietary needs of animals, primarily those in agriculture and food production, but also in zoos, aquariums, and wildlife management. There are seven major classes of nutrients: carbohydrates, fats, fibre, minerals, proteins, vitamins, and water.

Ingestion is the consumption of a substance by an organism. In animals, it normally is accomplished by taking in the substance through the mouth into the gastrointestinal tract, such as through eating or drinking. In single celled organisms,ingestion can take place through taking the substance through the cellmembrane..

The absorption of nutrients into the body after digestion in the intestine and its transformation in biological tissues and fluids. Assimilation is occurring in every cell of the body to help develop new cells.

Absorption is The process of absorbing or assimilating substances into cells or across the tissues and organs through diffusion or osmosis, as in absorption of nutrients by the digestive system, or absorption of drugs into the bloodstream.