Final answer:
A sperm cell functions to fertilize an egg and create a new organism. It has a head, mid-piece, and tail region, with each part having a specific function. The head contains the nucleus and enzymes for penetrating the egg, the mid-piece has mitochondria for energy production, and the tail propels the sperm.
Step-by-step explanation:
A sperm cell has the function of fertilizing an egg to create a new organism. The sperm cell is the male gamete, and it carries 23 chromosomes, which combine with the 23 chromosomes from the female gamete during fertilization. The sperm cell has a head, mid-piece, and tail region, each with a specific function. The head contains the nucleus, which carries the genetic material, and enzymes that help the sperm penetrate the egg. The mid-piece is filled with mitochondria that produce energy for the flagellum, which is the tail region that propels the sperm.