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Q. No.Where does the early embryonic development of zygote in bryophytes take place?
1. In the Protonema.
2. In the Sporangium.
3. In the Antheridium.
4. In the Archegonium.
Subtopic: Bryophytes |
58%
From NCERT
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In pteridophytes:
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 diploid |
| II: | Body is differentiated in true roots, stems, and leaves |
| III: | Roots, stems, and leaves possess well differentiated vascular tissues |
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic: Pteridophytes |
85%
From NCERT
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Which of the following will be true for both bryophytes and pteridophytes?
1. They reproduce only asexually
2. They are vascular cryptogams
3. They have a dominant gametophyte
4. They require water for fertilisation
1. They reproduce only asexually
2. They are vascular cryptogams
3. They have a dominant gametophyte
4. They require water for fertilisation
Subtopic: Bryophytes | Pteridophytes |
86%
From NCERT
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Consider the given two statements:
| Statement I: | All algae contain chlorophyll a as the primary photosynthetic pigment. |
| Statement II: | All algae reproduce sexually by the production of spores. |
| 1. | Both Statement I and Statement II are true |
| 2. | Statement I is true but Statement II is false |
| 3. | Statement I is false but Statement II is true |
| 4. | Both Statement I and Statement II are false |
Subtopic: Algae |
66%
From NCERT
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The composition of the cell wall in algae varies widely among different groups. Which of the following is not a common component of algal cell walls?
| 1. | Cellulose | 2. | Pectin |
| 3. | Chitin | 4. | Algin |
Subtopic: Algae |
87%
From NCERT
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What is the key difference between bryophytes and pteridophytes?
| 1. | Bryophytes are vascular plants, whereas pteridophytes are non-vascular. |
| 2. | Bryophytes have seeds, while pteridophytes reproduce through spores. |
| 3. | Pteridophytes have a well-developed vascular system, unlike bryophytes. |
| 4. | Bryophytes are predominantly aquatic, while pteridophytes are terrestrial |
Subtopic: Bryophytes | Pteridophytes |
90%
From NCERT
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What makes Red Algae different from Green Algae and Brown Algae?
| 1. | Unlike Green Algae and Brown Algae, Red Algae do not have chlorophyll a. |
| 2. | Unlike Green Algae and Brown Algae, Red Algae have no differentiated cells. |
| 3. | Unlike Green Algae and Brown Algae, Red Algae are not photosynthetic. |
| 4. | Unlike Green Algae and Brown Algae, Red Algae do not have any flagellated stages in their life cycles. |
Subtopic: Algae | Rhodophyceae: Red Algae and Importance of Algae |
90%
From NCERT
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Which classes of algae are characterized by the presence of chlorophyll a?
1. Only I and II
2. Only II and III
3. Only I and III
4. I, II and III
| I: | Chlorophyceae |
| II: | Phaeophyceae |
| III: | Rhodophyceae |
1. Only I and II
2. Only II and III
3. Only I and III
4. I, II and III
Subtopic: Pheophyceae: Brown Algae | Rhodophyceae: Red Algae and Importance of Algae | Chlorophyceae: Green Algae |
90%
From NCERT
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Red algae are characterized by:
1. Having chlorophyll a and b
2. Storing food as starch
3. Their red color due to the pigment phycoerythrin
4. Floating freely in fresh water habitats
1. Having chlorophyll a and b
2. Storing food as starch
3. Their red color due to the pigment phycoerythrin
4. Floating freely in fresh water habitats
Subtopic: Rhodophyceae: Red Algae and Importance of Algae |
97%
From NCERT
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Which of the following is a comparison between Pteridophytes and Gymnosperms?
| 1. | Both reproduce sexually through seeds. |
| 2. | Pteridophytes have a well-developed vascular system, whereas gymnosperms do not. |
| 3. | Pteridophytes reproduce through spores, while gymnosperms reproduce through seeds. |
| 4. | Both are non-flowering plants that reproduce asexually. |
Subtopic: Pteridophytes | Gymnosperms |
79%
From NCERT
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