Lysosomes
Lysosomes are vesicles containing a hydrolytic enzyme called lysozyme. They are responsible for the breakdown of waste material, old organelles and pathogens ingested by white blood cells in a process called phagocytosis.

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Key terms in this lesson
- organelle
- A membrane-bound structure within a cell with a specific structure suited to a specific function.
- vesicle
- A small, fluid-filled sac bound by a single membrane, used for storage and transport within the cell.
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