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Q. No.Which of the following statement is correct?
1.
Ovules are not enclosed by the ovary wall in gymnosperms.
2.
Selaginella is heterosporous, while Salvinia is homosporous.
3.
Horsetails are gymnosperms.
4.
Stems are usually unbranched in both Cycas and Cedrus.
Subtopic: Gymnosperms: I | Gymnosperms |
81%
From NCERT
NEET - 2018
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Which one is wrongly matched?
1. Uniflagellate gametes - Polysiphonia
2. Biflagellate zoospores - Brown algae
3. Gemma cups - Marchantia
4. Unicellular organism - Chlorella
1. Uniflagellate gametes - Polysiphonia
2. Biflagellate zoospores - Brown algae
3. Gemma cups - Marchantia
4. Unicellular organism - Chlorella
Subtopic: Rhodophyceae: Red Algae and Importance of Algae |
83%
From NCERT
NEET - 2018
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Subtopic: Life Cycle Patterns in Plants (OLD NCERT) |
61%
From NCERT
NEET - 2017
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Life cycles of Ectocarpus and Fucus respectively are:
1. Diplontic, Haplodiplontic
2. Haplodiplontic, Diplontic
3. Haplodiplontic, Haplontic
4. Haplontic, Diplontic
Subtopic: Life Cycle Patterns in Plants (OLD NCERT) |
77%
From NCERT
NEET - 2017
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Select the mismatch
1. Cycas - Dioecious
2. Salvinia - Heterosporous
3. Equisetum - Homosporous
4. Pinus - Dioecious
Subtopic: Gymnosperms: I | Gymnosperms |
72%
From NCERT
NEET - 2017
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In bryophytes and pteridophytes, transport of male gametes requires?
| 1. | insects | 2. | birds |
| 3. | water | 4. | wind |
Subtopic: Bryophytes | Pteridophytes |
92%
From NCERT
NEET - 2016
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Select the correct statement:
| 1. | Salvinia, Ginkgo and Pinus all are gymnosperms |
| 2. | Sequoia is one of the tallest trees |
| 3. | The leave of gymnosperms are not well adapted to extremes of climate |
| 4. | Gymnosperms are both homosporous and heterosporous |
Subtopic: Examples of Gymnosperms |
87%
From NCERT
NEET - 2016
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Read the following five statements (I to V) and select the option with all correct statements.
| I: | Mosses and lichens are the first organisms to colonise bare rock. |
| II: | Selaginella is a homosporous pteridophyte. |
| III: | Coralloid roots in Cycas have VAM. |
| IV: | Main plant body in bryophytes is gametophytic, whereas in pteridophytes it is sporophytic. |
| V: | In gymnosperms, male and female gametophytes are present within sporangia located on sporophytes. |
| 1. | I, III and IV | 2. | II, III and IV |
| 3. | I, IV and V | 4. | II, III and V |
Subtopic: Bryophytes | Pteridophytes | Gymnosperms |
58%
From NCERT
NEET - 2015
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In which of the following gametophyte is not independent free-living?
| 1. | Funaria | 2. | Marchantia |
| 3. | Pteris | 4. | Pinus |
Subtopic: Gymnosperms: I | Life Cycle Patterns in Plants (OLD NCERT) | Gymnosperms |
73%
From NCERT
NEET - 2015
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Which one of the following statements is wrong?
1. Algin and carrageenan are products of algae
2. Agar-agar is obtained from Gelidium and Gracilaria
3. Chlorella and Spirulina are used as space food
4. Mannitol is stored food in Rhodophyceae
Subtopic: Algae | Rhodophyceae: Red Algae and Importance of Algae |
90%
From NCERT
NEET - 2015
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