The smooth endoplasmic reticulum.
Smooth ER
The Sarcoplasmic Reticulum stores calcium and releases it through the terminal cisternae into the tubule.
sarcoplasmic reticulum
Prokaryotes cells
lysosomes
=it synthesizes complex molecules called steroids in some cells, stores calcium ions in muscles and breaks down toxins in liver=
the vacuole
The endoplasmic reticulum is involved in the production of steroids, the regulation of calcium and the breakdown of toxins.
the vacuole stores the food and the liquid in a cell.
It is vacuole .
A calciosome is a sarcoplasmic reticulum-like organelle which is involved in intracellar calcium-handling by non-muscle cells.
The vacuole is the organelle that stores H2O, or water. (It also stores other nutrients and materials for the cell.)