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Science · 2026 · 5 marks
CBSE 2026 · Region 2 · Set 1 · Q16
Attempt either (a) or (b): (a) (i) Name an organ that helps in the formation of male germ cells in humans and also mention the condition that favours…
Attempt either (a) or (b) :
(a)(i)
Name an organ that helps in the formation of male germ cells in humans and also mention the condition that favours the formation of male germ cells.
(ii)
In male reproductive system, write the pathway followed to deliver male germ cells to the site of fertilisation.
(iii)
Mention the main physical feature of the male germ cell that helps it move towards the female germ cell.
(b)
Radha has three children. She does not want to have more children. Radha visits a nearby hospital, to know the methods to prevent pregnancy.
(i)
Mention the name of any two ways other than the surgical methods, following which Radha can avoid unwanted pregnancies.
(ii)
Name the surgical methods to prevent pregnancy.
(iii)
Give one example each of sexually transmitted diseases caused by bacteria and virus.
Marking-scheme solution
(a) (i)
Organ - Testes
Conditions - Requires a lower temperature than the normal body temperature/Secretion of testosterone.
(ii) The sperms formed in the testes are carried by Vas deferens and delivered to urethra (Common passage for both sperms and urine). / Testes →Vas deferens → Urethra
(iii) Long tail of sperms. OR
(b)(i)
Mechanical barrier / Female condom (Diaphragm)/ similar covering worn in vagina
Oral contraceptives/ Oral pills
Copper - T / loops.
(ii)
Surgical methods
Vas deferens in the male is blocked / Vasectomy
Fallopian tube in the female is blocked /Tubectomy
(iii)
Bacteria - Gonorrhoea / Syphilis
All How do Organisms Reproduce? questions2026 question paperNCERT solutions: How do Organisms Reproduce?Practice How do Organisms Reproduce? →
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CBSE Class 10 Science past-paper question from the 2026 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.