(a) (i) Where are testes located in the human males and why ? State two function of the testes. (ii) In the…
(a) (i) Where are testes located in the human males and why ? State two function of the testes.
(ii) In the human female, one of the ovaries releases an egg every month. State the changes that take place if
(1) the egg is fertilized, and
(2) the egg is not fertilized.
(iii) What is done during the surgical method in males and females to prevent pregnancy ?
Solution
(a) (i) Outside the abdominal cavity in scrotum, sperm formation requires a lower temperature than the normal body temperature.
Function:
*Formation of sperms / male gamete
*Production of testosterone / male sex hormone
(ii) (1) The fertilized egg (zygote) starts dividing to form embryo and gets implanted in the lining of uterus.
(2) The inner lining of uterus slowly breaks and comes out through the vagina as blood and mucous.
(iii) Vas deferens is blocked / Vasectomy in males.
Fallopian tube is blocked / Tubectomy in females.