Placenta Takes Over Hormone Production

HSC Biology students — this pregnancy hormone question is guaranteed marks if you know this.

Question (3–7s): Progesterone and oestrogen are produced initially by the corpus luteum.

As pregnancy progresses, this function is taken over by which structure? Explanation (7–25s):

In early pregnancy, the corpus luteum produces progesterone and oestrogen to maintain the uterine

lining. However, the corpus luteum cannot function for the entire pregnancy.

As the placenta develops, it takes over the role of producing progesterone and

oestrogen. These hormones are essential for maintaining pregnancy and supporting fetal development.

Answer (25–32s): So the correct answer is C — the placenta. Exam Tip (32–38s): Remember this rule