Question

Which of the following is not the function of a placenta?

(a) Supply of nutrients to the fetus

(b) Removal of excretory products from the fetus

(c) Supply of carbon dioxide to the fetus

(d) Supply of oxygen to the fetus

This question was addressed to me in an interview for internship.

I want to ask this question from Human Reproduction topic in chapter Human Reproduction of Biology – Class 12

Answer 1

Correct option is (c) Supply of carbon dioxide to the fetus

To explain I would say: Placenta connects the maternal system to the fetal system. It provides nutrients for the fetus. It also removes the excretory products that would be harmful to it. It also provides a gaseous exchange by providing oxygen and removing carbon dioxide.