what do you mean by holozic nutrition name all the steps involved in it
Answers
Holozoic nutrition is a type of heterotrophic nutrition that is characterized by the internalized processing of gaseous, liquid or solid food particles. Protozoa, such as amoebas, and most of the free living animals, such as animals, exhibit this type of nutrition.
I think it should correct.
In Holozoic Nutrition, the organisms feed exclusively on the solid organic food materials. The food may be a whole plant or whole animal or their parts. It is found in most of the free living animals including man.
Depending upon the source of food, holozoic or holotrophs are of following types :
1. HERBIVORES
2.CARNIVORES
3. OMNIVORES
Steps of Holozoic Nutrition -
1. Ingestion - It involves intaking of food. It depends upon size of food structures adapted for ingestion.
2. Digestion - It is the process by which complex, large-sized, insoluble and non-diffusible polymeric organic compounds like proteins,fats etc., are changed into simple,small, soluble and diffusible monomeric organic compounds.
3. Absorption - It is the process by which diffusible nutrients pass through the wall of alimentary canal into blood or lymph.
4. Assimilation - It is the process by which simple nutrients are metabolised to resynthesize the complex macro- biomolecules like proteins,fats etc.
5. Egestion - It involves expelling of undigested food particles in the form of faeces which also contain excess of water and digestive enzymes.