Question

In testes : 1. Each seminiferous tubule is lined on its inside by two types of cells called male germ cells and Sertoli cells. 2. Sertoli cells undergo meiotic divisions finally leading to sperm formation. 3. The male germ cellsprovide nutrition to the germ cells. Regarding 1,2 and 3 :

Answer 1

1.Each seminiferous tubule is lined by Germinal epithelium which consists of undifferentiated male germ cells called spermatogonial mother cells and it also bears nourishing cells called Sertoli cells.......
2. Spermatogonia produce the primary spermatocytes which undergo meiotic division leading to formation of spermatids which forms sperms......
3. Male germ cells also called spermatogonia which forms sperms......
......

So statement 1 is correct.....but statement 2 and 3 is incorrect......the function of male germ cell and Sertoli cells is exchanged in your questions statement.