The placenta transports _____ between the mother and fetus.

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The placenta is responsible for exchanging nutrients (e.g. glucose) and gas (e.g. oxygen) between the mother and fetus. It also removes waste products (e.g. carbon dioxide) from the fetal bloodstream. While insulin and enzymes may be transported across the placenta, they are not typically categorized as nutrients or gases. Maternal red blood cells, on the other hand, should not cross the placenta as they could potentially initiate an immune response in the fetus.

The Placenta Transports _____ Between the Mother and Fetus