Question

Name the three main regions of the human sperm, and briefly mention the function of each.

Answer 1

1. Head (Acrosome): The acrosome at the top of the head of the sperm secretes an enzyme (hyaluronidase), which facilitates entry of the sperm into the egg by dissolving the wall of the ovum.
2. Middle Piece (Mitochondria): The mitochondria contained in the middle piece, provide energy (ATP) for the activity of the sperm to swim.
3. Tail (Axial Filament): The tail makes lashing movements for propulsion.