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Q. No.Red algae differ from green and brown algae in:
1.
having Chlorophyll a as main photosynthetic pigment
2.
their capability of sexual reproduction
3.
not having a well-developed nucleus
4.
lacking flagellated cells in the life cycle
Subtopic: Algae |
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All the following will be correct for members of Chlorophyceae except:
| 1. | Chlorophyll a and Chlorophyll b are dominant photosynthetic pigments |
| 2. | Pyrenoids seen in chloroplasts in most |
| 3. | Cellulosic cell wall |
| 4. | 2 unequal and lateral flagellar insertions |
Subtopic: Chlorophyceae: Green Algae |
77%
From NCERT
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All the following will be correct for members of Phaeophyceae except:
| 1. | Chlorophyll a and Chlorophyll c are dominant photosynthetic pigments |
| 2. | Pyriform gametes |
| 3. | Floridean starch is the stored food |
| 4. | 2 unequal and lateral flagellar insertions |
Subtopic: Pheophyceae: Brown Algae |
79%
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 |
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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 a gametophyte |
| II: | body is differentiated into true root, stem and leaves |
| III: | organs 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 |
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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 |
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From NCERT
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Protonema is a stage in the life cycle that is:
1. Haploid and is found in mosses
2. Diploid and is found in liverworts
3. Diploid and is found in pteridophytes
4. Haploid and is found in pteridophytes
1. Haploid and is found in mosses
2. Diploid and is found in liverworts
3. Diploid and is found in pteridophytes
4. Haploid and is found in pteridophytes
Subtopic: Bryophytes |
83%
From NCERT
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A root like holdfast, a stem like stipe and a leaf like frond constitutes the plant body in case of
| 1. | Rhodophyceae | 2. | Chlorophyceae |
| 3. | Phaeophyceae | 4. | Ferns |
Subtopic: Pheophyceae: Brown Algae |
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From NCERT
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Which of the following will not be true for the members of Rhodophyceae?
| 1. | Chlorophyll a, d, and Phycoerythrin are present. |
| 2. | Stored food is Floridean starch. |
| 3. | Cell wall is cellulosic, having pectin and polysulphate esters. |
| 4. | Flagellar number and position of insertions is two unequal and lateral, respectively. |
Subtopic: Rhodophyceae: Red Algae and Importance of Algae |
87%
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Consider the given two statements.
1. Only Statement I is correct.
2. Only Statement II is correct.
3. Both Statement I and Statement I are correct.
4. Both Statement I and Statement II are incorrect.
| Statement I: | In gymnosperms, the megasporangium develops into a multicellular female gametophyte that bears two or more archegonia. |
| Statement II: | In gymnosperms, archegonia are the female sex organs. |
2. Only Statement II is correct.
3. Both Statement I and Statement I are correct.
4. Both Statement I and Statement II are incorrect.
Subtopic: Gymnosperms |
67%
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