Final answer:
The acrosome is the specialized structure on the sperm that contains hydrolytic enzymes. It helps the sperm penetrate the egg during fertilization.
Step-by-step explanation:
The specialized structure on the sperm that contains hydrolytic enzymes is the acrosome.
The acrosome is a cap-like vesicle located at the anterior-most region of a sperm. It is filled with lysosomal enzymes that are capable of digesting the protective layers surrounding the egg.
The acrosome plays a crucial role in fertilization by helping the sperm penetrate the egg, allowing for successful fertilization to occur.