[Campbell Biology P.1085] Which of the following is NOT a primary function of the placenta? | Practice Question

Which of the following is NOT a primary function of the placenta?

  • A: Supplying nutrients to the embryo.
  • B: Providing immune protection to the embryo.
  • C: Exchanging respiratory gases between mother and embryo.
  • D: Producing red blood cells for the embryo.
  • E: Disposing of metabolic wastes from the embryo.

Explanation

The placenta is responsible for nutrient supply, immune protection, gas exchange, and waste disposal. However, red blood cell production hematopoiesis primarily occurs within the embryo/fetus itself, initially in the yolk sac and later in the liver, spleen, and bone marrow, not the placenta.