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Science · 2023 · 5 marks
CBSE 2023 · Region 1 · Set 3 · Q34
(a)Mention the role of the following organs of human male reproductive system :(i)Testis(ii)Scrotum(iii)Vas-deferens(iv)Seminal vesicle(b)What is Placenta ? State its function in a human female.
(a)
Mention the role of the following organs of human male reproductive system :
(i)
Testis
(ii)
Scrotum
(iii)
Vas-deferens
(iv)
Seminal vesicle
(b)
What is Placenta ? State its function in a human female.
Marking-scheme solution
(i) Testis - To produce male gametes/sperm/Male hormone/Testosterone .
(ii) Scrotum - To provide optimal temperature to testis for the formation of sperm.
(iii) Vas deferens - Transport the sperm to urethra.
(iv) Seminal vesicles - To secrete the fluid which provides nutrition and medium for the transport of sperms.
(b) Placenta - A disc shaped specialized tissue embedded in the uterine wall which connects the mother to the embryo. It contains villi on the embryo's side and blood spaces on the mother's side.
Function: - Helps in exchange of nutrients, gases and waste materials between the mother and embryo/foetus.More from How do Organisms Reproduce?
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CBSE Class 10 Science past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.