Phagolysosome

Definition

A phagolysosome is a cellular structure formed by the fusion of a phagosome with a lysosome. It plays a crucial role in the digestion and breakdown of ingested particles within protists and other cells.

5 Must Know Facts For Your Next Test

1. Phagolysosomes are essential for the intracellular digestion process in many protists.
2. They contain hydrolytic enzymes that break down engulfed material, such as bacteria or debris.
3. The formation of phagolysosomes involves the fusion of a phagosome with a lysosome, combining their contents.
4. Phagolysosomes help protect the cell by degrading potentially harmful pathogens.
5. In some protists, the process of forming phagolysosomes is key to nutrient acquisition.

Review Questions

• What roles do phagolysosomes play in protist cells?
• How does a phagolysosome form within a cell?
• Why are hydrolytic enzymes important for the function of a phagolysosome?

Related terms

Phagocytosis: A cellular process where cells engulf large particles or microorganisms.

Lysosome: An organelle containing digestive enzymes, crucial for breaking down waste materials within the cell.

Hydrolytic Enzymes: Enzymes that catalyze the hydrolysis of chemical bonds, aiding in digestion within cells.