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Science · 2023 · 5 marks
CBSE 2023 · Region 6 · Set 3 · Q35
(a) Name the two types of pollination and differentiate between them. (b) Explain the post fertilization changes that occur in the ovary of a flower.…
(a)
Name the two types of pollination and differentiate between them.
(b)
Explain the post fertilization changes that occur in the ovary of a flower.
(c)
Given below is a diagram of a germinating seed. Label the parts that
Marking-scheme solution
(a) Two types of pollination:
Self pollination
Cross pollination
| Self pollination | Cross pollination |
| Transfer of pollen grains from stamen to the stigma of pistil of the same flower or another flower of the same plant. | Transfer of pollen grain occurs from one flower to another flower of a different plant. |
(b)
Zygote divides several times to form an embryo within the ovule.
The ovule develops a tough coat and is converted into a seed.
The ovary grows rapidly and ripens to form a fruit
Sepals, petals stamens dry and fall off.
(c) A → Plumule
B → Radicle
C → Cotyledon
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.