Question

Mobility of mature sperm is controlled by mitochondria present in

• A. Head
• B. Middle piece
• C. Tail
• D. All the above

Answer 1

The correct option is B Middle piece

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 middle piece of mammalian sperm cell possesses numerous mitochondria. These mitochondria are 25 to 30 in number which are spirally arranged. The mobility of mature sperm is controlled by mitochondria present in the middle piece. The mitochondria produce energy for the movement of the tail. Thus, it is called the powerhouse of the sperm.

Thus, the correct answer is 'Middle piece'.