Final answer:
The seminal vesicles provide fructose as fuel to produce ATP for sperm motility. Fructose is essential for sperm energy as they move through the female reproductive tract. Spermatogenesis, the production of sperm, occurs in the seminiferous tubules of the testes.
Step-by-step explanation:
The seminal vesicles play a crucial role in contributing to semen composition, providing substances that support sperm viability and motility. One of the main components contributed by the seminal vesicles is fructose, a sugar that serves as an energy source for sperm. This energy is vital for the motility of sperm as they navigate through the female reproductive tract in their journey towards fertilization.
Sperm, produced in the testes through spermatogenesis, rely on fructose metabolism to produce ATP in their mitochondria. ATP is essential for the energy-demanding process of sperm motility, allowing them to navigate through the female reproductive system and reach the egg.
Contrary to the role of the seminal vesicles, the pancreas primarily produces digestive enzymes for the breakdown of nutrients in the digestive system and is not directly involved in the production of fructose for sperm activity.