acidocalcisome
An electron-dense acidic membrane-bounded organelle which contains a matrix of pyrophosphate and polyphosphates with bound calcium and other cations.
GO:0043231
intracellular membrane-bounded organelle
is_a
GO:0005737
cytoplasm
part_of
metachromatic granule
exact
polyphosphate vacuole
related
volutin granule
exact