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Science · 2022 · 3 marks
CBSE 2022 · Region 4 · Set 1 · Q10
In flowering plants, the pollen grains are transferred to stigma by pollination but the female germ cells are present in the ovary. Explain with the help of a labelled diagram (only concerned parts), how the male germ cell reaches the ovary.
Marking-scheme solution
After the pollen lands on a suitable stigma, it has to reach the female germ cells which is located in the ovary. For this a tube grows out of the pollen grain and travels through the style to reach the ovary.
Germination of pollen on stigma
Labelling: pollen tube/ ovary/ male germ cell
Germination of pollen on stigma
Labelling: pollen tube/ ovary/ male germ cellMore from How do Organisms Reproduce?
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CBSE Class 10 Science past-paper question from the 2022board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.