Generated by claude-sonnet-4-6 · 2026-06-15 06:42 · grounding rag
Model Answer
(i) Functions of parts of the female reproductive system:
(I) Ovary: Produces female germ cells (eggs/ova) and secretes female sex hormones.
(II) Fallopian tube (Oviduct): Carries the egg from the ovary to the uterus. Fertilisation of the egg by sperm takes place here.
(III) Uterus: Receives and nurtures the fertilised egg (embryo). Its lining thickens every month to prepare for implantation. It provides nourishment to the developing embryo through the placenta and its muscles contract during childbirth.
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(ii) Two contraceptive methods used by human males:
- Condom: A mechanical barrier worn over the penis during intercourse; prevents sperm from reaching the egg and also protects against sexually transmitted diseases.
- Vasectomy: A surgical method in which the vas deferens is blocked or cut, preventing the transfer of sperms, thus avoiding fertilisation.
Source: How do Organisms Reproduce?, Section 7.3.3(b) and 7.3.3(d)
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Explanation
- For (i), each part carries 1 mark — state the function clearly in one sentence each; mention both egg production and hormone production for ovary to be safe.
- For (ii), name the method AND briefly state how it works — examiners look for the mechanism, not just the name.
- Vasectomy (blocking vas deferens) and condom are the two standard male methods mentioned in the NCERT text; stick to these.