Question

The middle portion of a sperm contains what, that produces energy?

Answer 1

Middle portion of sperm contains mitochondria

Explanation:

Structure of sperm is head, middle piece and tail. Head consists of single set of chromosomes. It is called haploid. Middle piece contains mitochondria. Mitochondria produce energy for movement of tail. The tail of sperm is with contractile proteins. The energy for contraction is released from mitochondria