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Biology · SEXUAL REPRODUCTION IN FLOWERING PLANTS
हिन्दीChoose the correct option: Column I (Embryo Sac Component)Column II (Location / Structure) AEgg apparatusILarge cell containing two polar nuclei BAntipodalsIIThree cells located at the chalazal end CCentral cellIIITwo synergids and one egg cell at the micropylar end DFiliform apparatusIVCellular thickenings at the micropylar tip of synergids
Choose the correct option:
| Column I (Embryo Sac Component) | Column II (Location / Structure) | ||
|---|---|---|---|
| A | Egg apparatus | I | Large cell containing two polar nuclei |
| B | Antipodals | II | Three cells located at the chalazal end |
| C | Central cell | III | Two synergids and one egg cell at the micropylar end |
| D | Filiform apparatus | IV | Cellular thickenings at the micropylar tip of synergids |
Correct answer · Option 1
A-III, B-II, C-I, D-IV
Explanation
Step-by-step verification:
1. Egg apparatus (A) consists of two synergids and one egg cell situated at the micropylar end of the embryo sac (Matches with III).
2. Antipodals (B) are a group of three cells located at the opposite chalazal end (Matches with II).
3. Central cell (C) is the largest cell of the embryo sac containing two polar nuclei (Matches with I).
4. Filiform apparatus (D) refers to special cellular thickenings at the micropylar tip of synergids that guide the pollen tube (Matches with IV).
Therefore, the correct matching is A-III, B-II, C-I, D-IV, which corresponds to Option 1.
