Q. No.The bryophyte with most economic importance will be:
| 1. | peat moss | 2. | liverwort |
| 3. | hornwort | 4. | Polytrichum |
Subtopic: Bryophytes |
89%
From NCERT
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Consider the given two statements:
| Assertion (A): | Bryophytes are also called amphibians of the plant kingdom. |
| Reason (R): | Bryophytes play an important role in plant succession on bare rocks/soil. |
| 1. | Both (A) and (R) are True and (R) explains (A) |
| 2. | Both (A) and (R) are True and (R) does not explain (A) |
| 3. | (A) is True but (R) is False |
| 4. | (A) is False but (R) is True |
Subtopic: Bryophytes |
84%
From NCERT
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Thallus like plant body, attached to substratum by rhizoids, requiring water for sexual reproduction and a dominant gametophyte characterise:
| 1. | Pteridophytes | 2. | Gymnosperms |
| 3. | Monocots | 4. | Bryophytes |
Subtopic: Bryophytes |
91%
From NCERT
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Regarding bryophytes:
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
| I: | The main plant body is haploid. |
| II: | The sex organs are multicellular. |
| III: | The sporophyte is not free-living. |
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic: Bryophytes |
78%
From NCERT
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Antheridium of bryophytes produce _______ antherozoids.
| 1. | Non-motile | 2. | Uni-flagellate |
| 3. | Biflagellate | 4. | Ciliate |
Subtopic: Bryophytes |
85%
From NCERT
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All the following are characteristics of bryophytes except:
1. spore producing
2. dominant gametophyte
3. lignified tissues
4. producing antheridium and archegonium
Subtopic: Bryophytes |
87%
From NCERT
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How many of the given statements regarding sexual reproduction in Bryophytes are true?
1. 2
2. 3
3. 4
4. 5
| I: | The sex organs in bryophytes are multicellular. |
| II: | The male sex organ is called antheridium and they produce biflagellate antherozoids. |
| III: | The female sex organ called archegonium is flask-shaped and produces a single egg. |
| IV: | The antherozoids are released into water where they come in contact with archegonium. |
| V: | Zygotes undergo reduction division immediately. |
2. 3
3. 4
4. 5
Subtopic: Bryophytes |
74%
From NCERT
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Which of the following statement will not be true regarding bryophytes?
| 1. | They are dependent on water for sexual reproduction. |
| 2. | Archegonium is flask shaped and produces multiple eggs. |
| 3. | Sporophyte is attached to the photosynthetic gametophytes and derives nourishment from it. |
| 4. | The antherozoids are released into water. |
Subtopic: Bryophytes |
88%
From NCERT
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In bryophytes:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | Zygotes undergo reduction division immediately. |
| II: | The sporophyte is not free-living but attached to the photosynthetic gametophyte and derives nourishment from it. |
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Bryophytes |
80%
From NCERT
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Study the Assertion statement followed by the Reason statement given below:
| Assertion (A): | Peat moss is used as packing material for trans-shipment of living material. |
| Reason (R): | Peat moss has a good capacity to hold water. |
| 1. | (A) is True and (R) is False. |
| 2. | Both (A) and (R) are True and (R) is a correct explanation of (A). |
| 3. | Both (A) and (R) are True but (R) is not a correct explanation of (A). |
| 4. | (A) is False and (R) is True. |
Subtopic: Bryophytes |
92%
From NCERT
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