Match List I with List II. List I List II A. Leydig cell I. Progester…

The correct answer is Option (4) → (A) - (II), (B) - (III), (C) - (IV), (D) - (I)

(A) Leydig cell — this matches (II) Androgen. Leydig cells lie in the spaces between the seminiferous tubules of the testis. They make the male hormones, the androgens, when stimulated by luteinising hormone (LH).

(B) Placenta — this matches (III) Human placental lactogen (hPL). Besides linking the foetus with the mother, the placenta works as an endocrine tissue during pregnancy, and hPL is one of its hormones.

(C) Pituitary — this matches (IV) FSH (Follicle-Stimulating Hormone). Under the control of gonadotropin releasing hormone (GnRH) from the hypothalamus, the anterior pituitary releases two gonadotropins, LH and FSH (follicle stimulating hormone).

(D) Corpus luteum — this matches (I) Progesterone. After ovulation, the remains of the Graafian follicle form the corpus luteum. It secretes progesterone, which keeps the endometrium ready for implantation.

NCERT Extract:
The Male Reproductive System – “… Leydig cells synthesise and secrete testicular hormones called androgens. Other immunologically competent cells are also present.”
Gametogenesis – “… The increased levels of GnRH then acts at the anterior pituitary gland and stimulates secretion of two gonadotropins – luteinising hormone (LH) and follicle stimulating hormone (FSH).”
Menstrual Cycle – “… The corpus luteum secretes large amounts of progesterone which is essential for maintenance of the endometrium.”
Pregnancy and Embryonic Development – “… Placenta also acts as an endocrine tissue and produces several hormones like human chorionic gonadotropin (hCG), human placental lactogen (hPL), estrogens, progestogens, etc.”