Question 40

The placenta plays a crucial role in providing nutrients and oxygen to the developing embryo.

The placenta is essential for embryo growth and development as it facilitates the transfer of nutrients and oxygen from the mother to the embryo, supporting its growth and metabolic needs.

A) Digestion of nutrients

This option is incorrect because the placenta does not digest nutrients. Instead, it acts as a transport system that allows nutrients from the mother's bloodstream to pass into the embryo's circulation. Digestion occurs in the mother's gastrointestinal tract, not within the placenta.

B) Perception of stimuli

This option is also incorrect. The placenta does not have a role in perceiving stimuli. Its primary functions are related to nutrient and gas exchange, and it does not possess sensory capabilities to respond to external stimuli.

C) Transmission of electrical signals

This choice is incorrect as well. The placenta does not transmit electrical signals. Its function is related to the physical exchange of materials and does not involve any form of electrical or neurological signaling.

D) Providing of nutrients and oxygen

This option is correct because the placenta serves as the critical interface for nutrient and oxygen transfer from the mother to the embryo. It ensures that the developing embryo receives the necessary components for growth and development.

Conclusion

The placenta's primary role in providing nutrients and oxygen makes option D the definitive correct answer. Other options fail to accurately describe the functions of the placenta, highlighting its importance in sustaining the embryo through the provision of essential resources for growth and development.