What is the function of these organelles?

endoplasmic reticulum:

Golgi body:

mitochondrion:

ribosome

The Golgi apparatus is an organelle present in most eukaryotic cells. It is made up of membrane-bound sacs, and is also called a Golgi body, Golgi complex, or dictyosome. The job of the Golgi apparatus is to process and bundle macromolecules like proteins and lipids as they are synthesized within the cell. That's all I've got