User:Kenjifujimori/Intracellular digestion

The intracellular digestion, is a type of heterotrophic nutrition in which the food is decomposed (generally enzymes) and processed inside the cell. It is usually typical of very simple and unicellular organisms such as the amoeba.

Protists and sponges perform an intracellular digestion, in which they ingest microscopic food particles. Once digested, the food remains in a digestive vacuole; then the vacuole is fused with digestive enzymes and the food is fragmented into smaller molecules that can be absorbed within the cytoplasm of the cell. The undigested remains remain inside the vacuole, which eventually expels them outside the cell.

In the eukaryote, it consists of digesting the nutrients inside the cell, using the digestive enzymes of the lysosomes, that is, by phagocytosis and engulfing them forming digestive vesicles. The nutrients they obtain pass to the cytoplasm and the undigested food is expelled to the outside. it is the only system available to little evolved animals to digest their food.

Intracellular digestion: The cell ingests the food and includes it through the pseudopods. Lysosomes pour digestive enzymes into the vacuole. Digestion ends when organic matter passes into the cytoplasm.