The correct option is C Tip
The
primary sex organ, the testis in males produce gametes i.e. sperms. Mature sperm
cell consists of a head, a neck, a middle piece and a tail. A plasma membrane
envelops the whole body of sperm. The sperm head which is the tip of the sperm
cell contains a very little cytoplasm, an elongated haploid nucleus, the
anterior portion of which is covered by a cap-like structure, acrosome. The
acrosome is filled with enzymes that help in fertilization of ovum. These
enzymes called sperm lysins that dissolve the membranes enveloping the ovum and
help the sperm cell to enter the ovum by penetrating egg membrane. Acrosome is
derived from golgi apparatus. Its membrane extends down the outer surface of
nucleus.