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Q. No.Which of the following represents the female gametophyte?
1. Ovule
2. Embryo sac
3. Nucellus
4. Endosperm
Subtopic: Pistil: Ovule |
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NEET - 2024
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The flowers of Amorphophallus provide safe place for the pollinator to lay eggs. This is an example of:
| 1. | Amensalism | 2. | Anemophily |
| 3. | Floral reward | 4. | Commensalism |
Subtopic: Pollination & Outbreeding Devices |
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NEET - 2024
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The junction between ovule and funicle is represented by :
| 1. | Nucellus | 2. | Integument |
| 3. | Chalaza | 4. | Hilum |
Subtopic: Pistil: Ovule |
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Identify the correct description about the given figure:
| 1. | Water pollinated flowers showing stamens with mucilaginous covering. |
| 2. | Cleistogamous flowers showing autogamy. |
| 3. | Compact inflorescence showing complete autogamy. |
| 4. | Wind pollinated plant inflorescence showing flowers with well exposed stamens. |
Subtopic: Pollination & Outbreeding Devices |
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NEET - 2024
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Identify the set of correct statements:
Choose the correct answer from the options given below:
1. A, B, C and D only
2. A, C, D and E only
3. B, C, D and E only
4. C, D and E only
| A: | The flowers of Vallisneria are colourful and produce nectar. |
| B: | The flowers of waterlily are not pollinated by water. |
| C: | In most of water-pollinated species, the pollen grains are protected from wetting. |
| D: | Pollen grains of some hydrophytes are long and ribbon like. |
| E: | In some hydrophytes, the pollen grains are carried passively inside water. |
Choose the correct answer from the options given below:
1. A, B, C and D only
2. A, C, D and E only
3. B, C, D and E only
4. C, D and E only
Subtopic: Pollination & Outbreeding Devices |
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From NCERT
NEET - 2024
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Which part of the ovule store reserve food material?
1. Nucellus
2. Integument
3, Placenta
4. Funicle
1. Nucellus
2. Integument
3, Placenta
4. Funicle
Subtopic: Pistil: Ovule |
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NEET - 2024
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Pollen grains remain preserved as fossil due to the presence of :
1. Epidermal layer
2. Tapetum
3. Exine layer
4. Intine layer
1. Epidermal layer
2. Tapetum
3. Exine layer
4. Intine layer
Subtopic: Stamen: Male Gametophyte |
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In angiosperms, the correct sequence of events leading to the formation of female gametophyte in the ovule is:
Choose the correct answer from the options given below:
| A. | 3 successive free nuclear divisions in functional megaspore. |
| B. | Degeneration of 3 megaspores |
| C. | Meiotic division in megaspore mother cell |
| D. | Migration of 3 nuclei towards each pole. |
| E. | Formation of a wall resulting in seven celled embryosac. |
Choose the correct answer from the options given below:
| 1. | (A), (B), (C), (D), (E) | 2. | (C), (E), (A), (D), (B) |
| 3. | (B), (C), (A), (D), (E) | 4. | (C), (B), (A), (D), (E) |
Subtopic: Pistil: Ovule | Pistil: Female Gametophyte |
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From NCERT
NEET - 2023
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Transfer of pollen grains from anther to stigma of another flower of same plant is known as:
| 1. | Geitonogamy | 2. | Xenogamy |
| 3. | Autogamy | 4. | Cleistogamy |
Subtopic: Pollination & Outbreeding Devices |
86%
From NCERT
NEET - 2023
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In which of the following sets of families, the pollen grain are viable for months?
1. Solanaceae, Poaceae and Liliaceae
2. Brassicaceae, Liliaceae and Poaceae
3. Rosaceae, Liliaceae and Poaceae
4. Leguminosae, Solanaceae and Rosaceae
1. Solanaceae, Poaceae and Liliaceae
2. Brassicaceae, Liliaceae and Poaceae
3. Rosaceae, Liliaceae and Poaceae
4. Leguminosae, Solanaceae and Rosaceae
Subtopic: Stamen: Microsporangium | Stamen: Male Gametophyte |
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NEET - 2023
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