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Q. No.Consider the given two statements:
Assertion(A):
Artificial systems of classification of organisms are simple and acceptable to most scientists.
Reason (R):
Artificial classification systems take into account the evolutionary relationships between living organisms.
1.
Both (A) and (R) are True and (R) correctly explains (A).
2.
Both (A) and (R) are True but (R) does not correctly explain (A).
3.
(A) is True; (R) is False
4.
Both (A) and (R) are False
Subtopic: Classification System |
74%
Level 2: 60%+
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| Statement I: | Red algae do not occur in well-lighted regions close to the surface of water. |
| Statement II: | Red algae reproduce by non-motile spores and non-motile gametes. |
| 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: Rhodophyceae: Red Algae and Importance of Algae |
63%
Level 2: 60%+
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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 |
82%
Level 1: 80%+
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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 |
84%
Level 1: 80%+
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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 |
80%
Level 1: 80%+
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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 |
81%
Level 1: 80%+
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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 |
79%
Level 2: 60%+
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Identify the incorrectly matched pair:
| Pteridophyte class | Example | |
| 1. | Psilopsida | Adiantum |
| 2. | Lycopsida | Lycopodium |
| 3. | Sphenopsida | Equisetum |
| 4. | Pteropsida | Dryopteris |
Subtopic: Pteridophytes |
90%
Level 1: 80%+
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Identify the algal group:
1. Green algae
2. Brown algae
3. Red algae
4. Blue-green algae
| I: | They possess chlorophyll a, c, carotenoids and xanthophylls. |
| II: | Food is stored as complex carbohydrates, which may be in the form of laminarin or mannitol. |
2. Brown algae
3. Red algae
4. Blue-green algae
Subtopic: Pheophyceae: Brown Algae |
94%
Level 1: 80%+
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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%
Level 1: 80%+
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