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Q. No.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 |
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What is a prothallus?
| 1. | A structure in pteridophytes formed before the thallus develops |
| 2. | A sporophytic free living structure formed in pteridophytes |
| 3. | A gametophyte free living structure formed in pteridophytes |
| 4. | A primitive structure formed after fertilization in pteridophytes |
Subtopic: Pteridophytes |
70%
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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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.
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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Identify the correct statements:
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
| I: | Phylogenetic classification systems are based on evolutionary relationships. |
| II: | Numerical Taxonomy is based on all observable characteristics. |
2. Only II
3. Both I and II
4. Neither I nor II
Subtopic: Classification System |
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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