✓ Board-verified
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)…
(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.All How do Organisms Reproduce? questions2023 question paperNCERT solutions: How do Organisms Reproduce?Practice How do Organisms Reproduce? →
More from How do Organisms Reproduce?
- In the following figure showing a germinating gram seed, name the parts labelled as A, B and C: Why is part ' B ' considered to be important during…2022
- Explain the events that take place once a sperm reaches the oviduct till it becomes a foetus. Write the role of placenta in pregnancy.2024
- Differentiate between self-pollination and cross pollination. Which one of the two is better for the survival of species? Give reason to justify your…2025
- The number of chromosomes in parents and offspring of a particular species undergoing sexual reproduction remains constant due to:2026
- Assertion: Offsprings produced by asexual reproduction are genetically similar to the parents. Reason (R): Asexual reproduction involves a single…2024
- Yeast multiplies by which of the following methods?2026
- (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…2023
- Which one of the two multicellular organisms - Spirogyra and Planaria reproduces by regeneration and why? Give an example of any other organism which…2022
CBSE Class 10 Science past-paper question from the 2023 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.