(a) In the human body, what is the role of (i) seminal vesicles, and (ii) prostrate gland?
(b) List two functions performed by testes in human beings.
Answers
Sperm and testosterone Formation are Testes Function
Explanation:
a.) Roles of Sex organs -
i. Seminal vesicles - It secretes alkaline secretions which lower the pH of semen and provide nourishment.
ii. Prostate Gland - The secretions of these glands keep the sperm active and mobile.
b.) Two functions performed by testes are:
(i) To produce the male sex cells (gametes) called sperms.
(ii) To secrete the male sex hormone called testosterone which is responsible for secondary sexual changes in males.
Answer:
(a) The role of seminal vesicles and the prostate gland are as follows:
(i) Seminal vesicles produce seminal plasma which is in the form of fluid makes the transport of sperms smooth.
(ii) Prostate gland secretes prostatic fluid that keeps the sperms alive and helps them to swim vigorously.
(b) Two functions performed by testis
in human beings are as follows:
(i) Formation of sperms takes place in testis.
(ii) They secrete the hormone testosterone which regulates the formation of sperms and brings changes in appearance of boys at the time of puberty.
Explanation: