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STRUCTURE OF A SPERM

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7activestudio

Apr 2, 2014

1356 views

Structure of a sperm it is a microscopic structure composed of a head, neck, a middle piece, and a tail. A plasma membrane envelopes, the whole body of sperm. The sperm had contains an elongated haploid nucleus. The anterior portion of which is covered by a cap like structure called acrosome. The acrosome is filled with enzymes that help fertilization of ovum. The middle piece possesses numerous mitochondria, which produce energy for the movement of tail that facilitates sperm, motility essential for fertilization. The human male ejaculates 200 to 300 million sperms during quite as. 60% must have normal shape and 40% show vigorous motility.

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