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Q. No.Which stage in life cycle of mosses bears sex organs?
1. spore
2. prothallus
3. leafy stage
4. secondary protonema
Subtopic: Bryophytes |
66%
From NCERT
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Consider the two statements:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I nor II are incorrect
| I: | Cyanobacteria are not 'algae' any more |
| II: | Cyanobacteria are new protists |
2. Only II is correct
3. Both I and II are correct
4. Both I nor II are incorrect
Subtopic: Kingdom Monera: Blue Green Algae |
65%
From NCERT
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Pyrenoids contain:
1. Protein and starch
2. Starch and lecithin
3. Lecithin and albumen
4. Protein and nucleic acids
1. Protein and starch
2. Starch and lecithin
3. Lecithin and albumen
4. Protein and nucleic acids
Subtopic: Chlorophyceae: Green Algae |
90%
From NCERT
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The classification of plants proposed by Linnaeus was basically based on:
1. phylogenetic relationships
2. androecium structure
3. nature of primary cell wall
4. type of heteromorphic alternation of generation
1. phylogenetic relationships
2. androecium structure
3. nature of primary cell wall
4. type of heteromorphic alternation of generation
Subtopic: Classification System |
65%
From NCERT
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Gemmae are:
1. asexual buds in liverworts
2. asexual buds in mosses
3. sex organs in red algae
4. sex organs in pteridophytes
1. asexual buds in liverworts
2. asexual buds in mosses
3. sex organs in red algae
4. sex organs in pteridophytes
Subtopic: Bryophytes (Liverworts) |
86%
From NCERT
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Consider the given two statements:
| Statement I: | Ferns have small leaves called microphylls |
| Statement II: | Equisetum has strobili or cones |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is correct; Statement II is incorrect |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Pteridophytes |
56%
From NCERT
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In mosses, spores:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I nor II are incorrect
| I: | are contained in capsule |
| II: | undergo meiosis |
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I nor II are incorrect
Subtopic: Bryophytes |
From NCERT
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Consider the two statements:
1. Only I
2. Only II
3. Both I and II are correct
4. Both I and II are incorrect
| I: | All pteridophytes are heterosporous |
| II: | All gymnosperms are homosporous |
2. Only II
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Pteridophytes | Gymnosperms |
81%
From NCERT
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Pollen grain is a reduced male gametophyte in:
1. Only I
2. Only II
3. Both I and II are correct
4. Both I nor II are incorrect
| I: | Gymnosperms |
| II: | Angiosperms |
1. Only I
2. Only II
3. Both I and II are correct
4. Both I nor II are incorrect
Subtopic: Gymnosperms |
61%
From NCERT
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Subtopic: Pheophyceae: Brown Algae |
85%
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