With reference to the study of human sperm, mention the functions of acrosome. proximal centriole, distal centriole and nebenkern.

Explanation

Acrosome : It releases hydrolytic enzymes to dissolve (penetrate) egg membranes and help the sperm to penetrate through them.
Proximal centriole : It produces spindle apparatus during Amphimixis. Distal centriole: It produces axial filament which forms the axis of middle piece and tail.
Nebenkern : It is the mitochondrial sheath which provides the energy for the movement of the sperm