Match List-I with List-II.
| List-I | List-II |
|---|---|
| Reproductive structures | Functions |
| (A) Germ cells | (I) To lubricate and activate sperms |
| (B) Sertoli cells | (II) To produce testosterone |
| (C) Leydig cells | (III) Sperm production |
| (D) Male accessory glands | (IV) To provide nourishment to germ cells |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → (A)-(III), (B)-(IV), (C)-(II), (D)-(I)
(A) Germ cells — this matches (III) Sperm production. The male germ cells (spermatogonia) line the seminiferous tubules. They divide by mitosis and meiosis and finally form the sperms.
(B) Sertoli cells — this matches (IV) To provide nourishment to germ cells. Sertoli cells also line the seminiferous tubules, next to the germ cells, and give them nutrition while the sperms form.
(C) Leydig cells — this matches (II) To produce testosterone. Leydig (interstitial) cells lie in the spaces outside the tubules. They make and release the male hormones called androgens, such as testosterone.
(D) Male accessory glands — this matches (I) To lubricate and activate sperms. The seminal vesicles, prostate and bulbourethral glands make the seminal plasma, which is rich in fructose, calcium and enzymes. It helps the sperms to move, and the bulbourethral secretion also helps in lubrication of the penis.