Examples of Heterotrophic Nutrition
Nutrition in Amoeba
Amoeba displays a holozoic mode of nutrition in the which the organsim is ingested as a whole and then absorbed by the body.
Following steps are involved in the process:-
- Ingestion: The amoeba encircles the food with its pseudopodia. The food is then swallowed up by the process of phagocytosis.
- Digestion: The food vacuoles are rich in digestive enzymes, which assist in the breakdown of food into simpler organic nutrients.
- Absorption: The digested nutrients are then absorbed into the cytoplasm, leaving undigested materials behind. This absorbed food is used to generate energy for cell growth and development.
- Egestion: The undigested food is ejected from the cell by rupturing the cell membrane.
Heterotrophic Nutrition
Heterotrophic mode of nutrition is most commonly seen in humans. Nutrition is broadly classified into two types- Autotrophic nutrition and Heterotrophic nutrition. In heterotrophic nutrition, the organism obtains and uses organic nutrients from other species. All the organisms belonging to Kingdom Fungi and Kingdom Animalia show completely heterotrophic nutrition. Organisms of Kingdom Plantae show a completely autotrophic type of nutrition, except for some parasitic, symbiotic, and partially heterotrophic plants.
Table of Content
- Heterotrophic Nutrition Definition
- Types of Heterotrophic Nutrition
- Saprophytic Nutrition
- Parasitic Nutrition
- Holozoic Nutrition
- Examples of Heterotrophic Nutrition