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Q. No.All the following belong to phaeophyceae except:
1. Ectocarpus
2. Polysiphonia
3. Dictyota
4. Laminaria
Subtopic: Pheophyceae: Brown Algae |
91%
From NCERT
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One of the commercial products obtained from Gelidium and Gracilaria and which is used to grow microbes and in preparations of ice-creams and jellies is:
1. Agar
2. Algin
3. Carrageen
4. Inulin
1. Agar
2. Algin
3. Carrageen
4. Inulin
Subtopic: Algae |
92%
From NCERT
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Consider the given two statements:
| Assertion (A): | Bryophytes are called amphibians of the plant kingdom. |
| Reason (R): | Bryophytes play an important role in plant succession on bare rocks. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are False. |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are True but (R) does not correctly explain (A). |
Subtopic: Bryophytes |
86%
From NCERT
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Gemmae are:
1. Asexual buds found in liverworts
2. Sex organs in mosses
3. Resting zygote in many fungi
4. Endospores of certain bacteria
1. Asexual buds found in liverworts
2. Sex organs in mosses
3. Resting zygote in many fungi
4. Endospores of certain bacteria
Subtopic: Bryophytes | Bryophytes (Liverworts) | Bryophytes (Anthoceropsida) |
95%
From NCERT
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What would be true regarding structures labelled as A and B in the given diagram of Funaria, a moss?
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
| I: | A is the gametophyte and B is the sporophyte. |
| II: | The ploidy of cells in A will be haploid and the ploidy of cells in B will be diploid. |
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
Subtopic: Bryophytes |
71%
From NCERT
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Evolutionarily, the first terrestrial plants to possess vascular tissues – xylem and phloem, are:
1. Bryophytes
2. Pteridophytes
3. Gymnosperms
4. Angiosperms
1. Bryophytes
2. Pteridophytes
3. Gymnosperms
4. Angiosperms
Subtopic: Pteridophytes |
94%
From NCERT
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The leaves in pteridophyta are:
1. microphylls in Selaginella or macrophylls in ferns.
2. macrophylls in Selaginella or microphylls in ferns.
3. microphylls in Selaginella and ferns.
4. macrophylls in Selaginella and ferns.
1. microphylls in Selaginella or macrophylls in ferns.
2. macrophylls in Selaginella or microphylls in ferns.
3. microphylls in Selaginella and ferns.
4. macrophylls in Selaginella and ferns.
Subtopic: Pteridophytes |
88%
From NCERT
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In majority of the pteridophytes:
1. Both I and II are correct
2. Both I and II are incorrect
3. Only I is correct
4. Only II is correct
| I: | transfer of male gamete to the female gamete does not require water |
| II: | all the spores are of similar kinds |
1. Both I and II are correct
2. Both I and II are incorrect
3. Only I is correct
4. Only II is correct
Subtopic: Pteridophytes |
From NCERT
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The class of pteridophytes to which Selaginella belongs is:
1. Psilopsida
2. Sphenopsida
3. Lycopsida
4. Pteropsida
1. Psilopsida
2. Sphenopsida
3. Lycopsida
4. Pteropsida
Subtopic: Pteridophytes |
78%
From NCERT
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The giant redwood tree Sequoia, one of the tallest tree species, is a:
| 1. | Pteridophyte | 2. | Monocot angiosperm |
| 3. | Dicot angiosperm | 4. | Gymnosperm |
Subtopic: Gymnosperms |
89%
From NCERT
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