Given below are two statements: one is labelled as Assertion and the other is labelled as Reason. Assertion: The middle piece of the human sperm contains numerous mitochondria. Reason: Mitochondria produce energy for the movement of the tail that facilitates sperm motility essential for fertilisation. In the light of the above statements, choose the most appropriate answer from the options given below:

Step-by-step solution

According to NCERT, the mammalian sperm consists of a head, neck, a middle piece and a tail. The middle piece possesses numerous mitochondria. These mitochondria produce energy for the movement of the tail, which facilitates sperm motility essential for fertilisation. Therefore, the Reason is a factual statement and correctly explains the physiological necessity for the high concentration of mitochondria in the middle piece (the Assertion). Thus, both the Assertion and the Reason are correct, and the Reason is the