Final answer:
Proteins with a peroxisomal targeting signal are recognized in the cytosol by PTS receptors, which mediate their transfer into peroxisomes, essential organelles that detoxify substances and manage lipid metabolism.
Step-by-step explanation:
Proteins destined for peroxisomes possess a peroxisomal targeting signal (PTS). The PTS will be recognized by the PTS receptor in the cytosol before they are translocated into peroxisomes. Proteins are delivered to the peroxisome membrane where they interact with the peroxisomal membrane protein (PMP) import machinery.
Peroxisomes are membrane-bound organelles that contain enzymes primarily responsible for detoxifying harmful substances and lipid metabolism, playing a critical role in cellular homeostasis and metabolism.