Answer:
These are essential constituent organelles of the endomembrane system with specific functions. These structures do exchange membrane material, kind of, through a special type of transport with the cell's plasma membrane but mainly through the protein- membrane communication.
Explanation:
The communication system between them includes;
• translational paths before, during and after protein synthesis ER during translation, after which they end up in the lumen, the internal cavity, where they are then packaged for vesicular release .
• post-translational modification path communication in the Golgi body by Golgi enzymes and the vesicular protein then the products are directed to the required destinations — probably the storage vesicles, lysosomes, or the plasma membrane.
This the summary of the exocytosis communication wherein these organelles involve.