Difficulty: Medium

Average Score: 53%

Which role does the placenta have in embryo growth and development?

Rationale

Providing of nutrients and oxygen.

The placenta plays a crucial role in embryo growth and development by supplying essential nutrients and oxygen from the mother to the developing fetus, while also facilitating the removal of waste products from the fetal circulation. This organ acts as a lifeline, ensuring the embryo's healthy growth and proper physiological function.

A (Digestion of nutrients) YOUR ANSWER

While the placenta is involved in nutrient transfer, it does not perform digestion. Digestion occurs in the mother's gastrointestinal system, where nutrients are broken down and then transported to the placenta. The placenta's function is to transfer these pre-digested nutrients to the embryo rather than digesting them itself.

B (Perception of stimuli) YOUR ANSWER

The placenta does not have the capability to perceive stimuli. It is primarily a vascular organ designed for nutrient and gas exchange, rather than a sensory organ. Perception of stimuli is a function of the nervous system, which is not present in the placenta.

C (Transmission of electrical signals) YOUR ANSWER

The placenta does not transmit electrical signals. Electrical signal transmission is typically associated with nerve cells and the nervous system. The placenta's role is mainly related to the vascular system and biochemical exchanges, not electrical communication.

D (Providing of nutrients and oxygen) CORRECT

The placenta is specifically designed to provide nutrients and oxygen to the developing embryo while removing waste products. This vital function supports embryonic growth and development, making it an essential component during pregnancy.

Conclusion

In summary, the placenta's primary role in embryo growth and development is to provide essential nutrients and oxygen while eliminating waste products. This organ is crucial for maintaining a healthy environment for the developing fetus, distinguishing it from other non-related functions such as digestion, perception of stimuli, and electrical signal transmission, which are not roles of the placenta.

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