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Science · 2026 · 5 marks
CBSE 2026 · Region 1 · Set 1 · Q16 (b)
Given below are certain situations. Analyse and describe what would happen when: (i) Spores are liberated from blob-like structures of the bread…
Given below are certain situations. Analyse and describe what would happen when :
(i)
Spores are liberated from blob-like structures of the bread mould?
(ii)
Leaves of bryophyllum fall on wet soil ?
(iii)
A pollen from different species land on the stigma of totally unrelated species ?
(iv)
Copper-T is placed in the uterus of a human female ?
(v)
Spirogyra breaks into smaller fragments upon maturation ?
Marking-scheme solution
(i) When spores land on a substance and get adequate moisture and temperature, it will develop into new Rhizopus.
(ii) New plants grow from the buds located in the notches of the leaf.
(iii) The pollen tube will not be formed. / No fertilisation will take place.
(iv) Fertilization/Pregnancy will be prevented.
(v) Each fragment or piece grows into a new individual organism.
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.