where do sperms get the energy required to keep the flagella moving
Sperm motility Back and forth movement of the tail results from a rhythmical longitudinal sliding motion between the anterior and posterior tubules that make up the axoneme. The energy for this process is supplied by ATP produced by mitochondria. The velocity of a sperm in fluid medium is usually 1â€“4 mm/min. This allows the sperm to move towards an ovum in order to fertilize it.