LYSOSOMES Flashcards
INTRO
The lysosome is an organelle that contains digestive enzymes
acts as the organelle-recycling facility of an animal cell
It breaks down old and unnecessary structures so their molecules can be reused.
Lysosomes are part of the endomembrane system, and some vesicles that leave the Golgi are bound for the lysosome.
PHAGOCYTOSIS
Lysosomes can also digest foreign particles that are brought into the cell from outside.
a section of the macrophage’s plasma membrane invaginates—folds inward—to engulf a pathogen,
The invaginated section, with the pathogen inside, pinches off from the plasma membrane to form a structure called a phagosome.
The phagosome then fuses with a lysosome, forming a combined compartment where digestive enzymes destroy the pathogen.