Final answer:
Mitochondrial and chloroplast proteins made in the cytosol have oligopeptide traffic signals to guide them to their appropriate organelles. Mitochondrial proteins have N-terminal signal peptides that bind to receptor proteins on the outer mitochondrial membrane.
Step-by-step explanation:
Mitochondrial and chloroplast proteins that are made in the cytosol will have oligopeptide traffic signals that direct them to their appropriate destinations. These signals help guide the proteins to the specific organelles where they are needed. For example, mitochondrial proteins have N-terminal signal peptides on their surface that recognize and bind to receptor proteins at the outer mitochondrial membrane.