Answer:
Rough endoplasmic reticulum.
Step-by-step explanation:
The cell organelles of the eukaryotes are memebrane bound. This compartmentalization helps in the protein signalling, protein processing and protein synthesis.
The protein can be transferred to endoplasmic reticulum, golgi, lysosomes and secreted out of the cell. The protein that are destined for the lysosome carries the signal peptide for the endoplasmic reticulum. From the endoplasmic reticulum, the proteins are tagged with mannose-6-phosphate move to the lysosome.
Thus, the answer is endoplasmic reticulum.