NEET Exam > NEET Questions > Which of the following is not correct?a)In ma...
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Which of the following is not correct?
- a)In maize, roots arise from the base of stem
- b)In Biyophyllum and roots arise from leaf
- c)Carrot (Damns carota) have napiform foot
- d)Mangroves (e.g. Rhizophora) have respiratory roots (pneumatophores)
Correct answer is option 'C'. Can you explain this answer?
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Which of the following is not correct?a)In maize, roots arise from the...
Conical root: this type of root tuber is conical in shape, i.e. widest at the top and tapering steadily towards the bottom: e.g. carrot hence it is conical root not napiform root
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Which of the following is not correct?a)In maize, roots arise from the...
Explanation:
The correct answer is option 'C' - Carrot (Daucus carota) does not have a napiform foot.
Explanation in detail:
1. Maize: In maize plants, roots arise from the base of the stem. The primary root emerges from the radicle and gives rise to lateral roots. These roots anchor the plant to the ground and absorb water and nutrients from the soil.
2. Bryophyllum: In Bryophyllum plants, such as Bryophyllum pinnatum, roots arise from the leaf. These plants have specialized structures called adventitious roots that emerge from the margins of the leaf. These roots grow into the soil and help in absorption of water and nutrients.
3. Carrot: Carrot (Daucus carota) does not have a napiform foot. The carrot is a taproot, which means it has a single, main root that grows vertically into the ground. The taproot of a carrot is elongated and tapers gradually towards the tip, rather than being swollen or enlarged like a napiform root.
4. Mangroves: Mangrove plants, such as Rhizophora, have specialized roots called pneumatophores or respiratory roots. These roots grow vertically out of the soil and above the water surface. Pneumatophores help in respiration by allowing the exchange of gases between the underground roots and the atmosphere. They also provide structural support to the mangrove plants in the muddy and waterlogged habitats.
In conclusion, the statement that is not correct is option 'C' - Carrot (Daucus carota) does not have a napiform foot. Carrots have taproots, which are elongated and taper gradually towards the tip.
The correct answer is option 'C' - Carrot (Daucus carota) does not have a napiform foot.
Explanation in detail:
1. Maize: In maize plants, roots arise from the base of the stem. The primary root emerges from the radicle and gives rise to lateral roots. These roots anchor the plant to the ground and absorb water and nutrients from the soil.
2. Bryophyllum: In Bryophyllum plants, such as Bryophyllum pinnatum, roots arise from the leaf. These plants have specialized structures called adventitious roots that emerge from the margins of the leaf. These roots grow into the soil and help in absorption of water and nutrients.
3. Carrot: Carrot (Daucus carota) does not have a napiform foot. The carrot is a taproot, which means it has a single, main root that grows vertically into the ground. The taproot of a carrot is elongated and tapers gradually towards the tip, rather than being swollen or enlarged like a napiform root.
4. Mangroves: Mangrove plants, such as Rhizophora, have specialized roots called pneumatophores or respiratory roots. These roots grow vertically out of the soil and above the water surface. Pneumatophores help in respiration by allowing the exchange of gases between the underground roots and the atmosphere. They also provide structural support to the mangrove plants in the muddy and waterlogged habitats.
In conclusion, the statement that is not correct is option 'C' - Carrot (Daucus carota) does not have a napiform foot. Carrots have taproots, which are elongated and taper gradually towards the tip.
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Which of the following is not correct?a)In maize, roots arise from the base of stemb)In Biyophyllum and roots arise from leafc)Carrot (Damns carota) have napiform footd)Mangroves (e.g. Rhizophora) have respiratory roots (pneumatophores)Correct answer is option 'C'. Can you explain this answer?
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