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Science · 2023 · 5 marks
CBSE 2023 · Region 1 · Set 1 · Q35
(a) Name the parts of a bisexual flower that are not directly involved in reproduction. (b) Differentiate between self pollination and cross…
(a)
Name the parts of a bisexual flower that are not directly involved in reproduction.
(b)
Differentiate between self pollination and cross pollination. List any two significance of pollination.
(c)
What is the fate of ovules and ovary after fertilization in a flower?
Marking-scheme solution
(a) Sepals/calyx and petals/ corolla
(b) Self-pollination: Transfer of pollen grain from anther to
stigma in the same flower or another flower of the same plant.
Cross pollination: Transfer of pollen grain from anther to stigma of one flower to another of two different plants.Significance.
1. Necessary for seed formation.
2. Stimulates development of fruits.
3. Cross pollination brings about genetic variation
4. Leads to fertilization
All How do Organisms Reproduce? questions2023 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 2023 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.