CBSE Class 10 Science 2022 · Paper 31/1/1 · Question 10

(a) (i) Testis: makes the male germ cells, the sperms (it also secretes the hormone testosterone). (ii) Scrotum: holds the testes outside the abdominal cavity, where they stay a little cooler than the normal body temperature — the lower temperature that sperm formation requires. (iii) Vas deferens: carries the sperms from the testis to the urethra. (iv) Prostate gland: adds its secretion to the sperms, so that they are in a fluid which makes their transport easier and also provides nutrition. (b) (i) The male germ cell (sperm) is motile. (ii) The female germ cell (egg, or ovum) stores food.