Final answer:
Peroxisomal targeting signal (PTS) of proteins is recognized by a PTS receptor in the cytosol, leading to their delivery to peroxisomes for functions like detoxification.
Step-by-step explanation:
Proteins destined for peroxisomes possess a peroxisomal targeting signal (PTS) which will be recognized by the PTS receptor in the cytosol.
Peroxisomes are membrane-bound organelles that play a crucial role in lipid metabolism and the detoxification of harmful substances, including the production of hydrogen peroxide (H2O2) from the transfer of hydrogen atoms. Once the PTS is recognized by the receptor in the cytosol, the protein is then delivered to the peroxisome.