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Q. No.Consider the given statements:
Statement I:
All three classes of algae possess cellulose in their cell walls.
Statement II:
Rhodophyceae lacks flagella, whereas Chlorophyceae can have up to 8 flagella.
Statement III:
Phaeophyceae stores food in the form of laminarin and starch.
1. Only Statement II is correct
2. Both Statement I and Statement II are correct
3. Only Statement III is correct
4. All Statements are correct
Subtopic: Algae |
From NCERT
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Consider the following statements about gymnosperms:
Which of the above statements is/are correct?
| Statement I: | Gymnosperms exhibit a dominant sporophyte in their life cycle. |
| Statement II: | Gymnosperms produce seeds and flowers but lack fruit formation. |
| Statement III: | In gymnosperms, male gametophytes are transported by water to fertilize the ovules. |
| 1. | Only I | 2. | Only I and II |
| 3. | Only II and III | 4. | All I, II, and III |
Subtopic: Gymnosperms |
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From NCERT
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Regarding the figure given below:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Neither I nor II are correct
| I: | It is a heterosporous pteridophyte. |
| II: | It belongs to Psilopsida. |
2. Only II is correct
3. Both I and II are correct
4. Neither I nor II are correct
Subtopic: Pteridophytes |
From NCERT
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Which of the following statements about numerical taxonomy is incorrect?
| 1. | It is based on the quantification of observable characteristics and the use of statistical methods. |
| 2. | It gives equal importance to all characteristics and does not distinguish between homologous and analogous traits. |
| 3. | It relies solely on genetic data and molecular markers for classification. |
| 4. | It uses computer algorithms to analyze large datasets and determine relationships between organisms. |
Subtopic: Classification System |
57%
From NCERT
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Consider the given two statements:
| Statement I: | Ferns have small leaves called microphylls |
| Statement II: | Equisetum has strobili or cones |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is correct; Statement II is incorrect |
| 3. | Statement I is incorrect; Statement II is correct |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Pteridophytes |
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From NCERT
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In mosses, spores:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I nor II are incorrect
| I: | are contained in capsule |
| II: | undergo meiosis |
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I nor II are incorrect
Subtopic: Bryophytes |
From NCERT
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Match the correct features with Pinus:
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
| I: | Needle like Leaves |
| II: | Reproduce by spores |
| III: | Male and female cones on the same plant |
2. Only I and III
3. Only II and III
4. I, II and III
Subtopic: Gymnosperms |
From NCERT
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Which of the following statements is true about zoospores and gametes in brown algae?
| 1. | Both zoospores and gametes in brown algae are motile and have equal sized flagella. |
| 2. | Zoospores are non-motile while gametes are motile, both lacking flagella. |
| 3. | Zoospores are motile with two flagella, while gametes are non-motile. |
| 4. | Zoospores and gametes are both motile and similar in the number of flagella. |
Subtopic: Pheophyceae: Brown Algae |
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 |
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From NCERT
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The given figure shows:
1. Only I is correct
2. Only II is correct
3. Only II and III are correct
4. I, II and III are incorrect
| I: | The male gametophyte of Marchantia |
| II: | Hair like multicellular, branched true roots on the margins of the plant body. |
| III: | Sexual reproductive cup like structures on the dorsal surface of the plant. |
2. Only II is correct
3. Only II and III are correct
4. I, II and III are incorrect
Subtopic: Bryophytes |
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