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Q. No.All the following are examples of members of Chlorophyceae except:
1. Ectocarpus
2. Chlamydomanas
3. Chara
4. Ulothrix
Subtopic: Chlorophyceae: Green Algae: II |
92%
From NCERT
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Regarding the size and form of brown algae:
1. Both I and II are incorrect
2. Only I is incorrect
3. Only I is correct
4. Both I and II are correct
| I: | Ectocarpus is profusely branched and may reach a height of 100 meters. |
| II: | Kelps are simple branched filamentous brown algae. |
1. Both I and II are incorrect
2. Only I is incorrect
3. Only I is correct
4. Both I and II are correct
Subtopic: Pheophyceae: Brown Algae |
67%
From NCERT
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All the following statements will be true for brown algae except:
| 1. | Major pigments are chlorophyll a, c, fucoxanthin |
| 2. | Food is stored as complex carbohydrates which may be in the form of Laminarin or Mannitol |
| 3. | Vegetative cells have chitinous wall usually covered on the outside by a gelatinous coating of algin |
| 4. | Flagellar number and insertions are 2, unequal and lateral |
Subtopic: Pheophyceae: Brown Algae |
76%
From NCERT
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In brown algae:
1. Both I and II are incorrect
2. Only I is incorrect
3. Only I is correct
4. Both I and II are correct
| I. | Asexual reproduction is by biflagellate zoospores that are pear shaped and have two unequal and laterally attached flagella. |
| II. | The gametes are pyriform [pear shaped] and bear two laterally attached flagella. |
1. Both I and II are incorrect
2. Only I is incorrect
3. Only I is correct
4. Both I and II are correct
Subtopic: Pheophyceae: Brown Algae |
83%
From NCERT
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The leaf like photosynthetic organ in the body of a typical brown alga is called as:
| 1. | Frond | 2. | Stipe |
| 3. | Holdfast | 4. | Rhizoid |
Subtopic: Pheophyceae: Brown Algae |
88%
From NCERT
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Subtopic: Pheophyceae: Brown Algae |
85%
From NCERT
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Which of the following statements would be true for brown algae?
| 1. | Major pigments are chlorophyll a, c and fucoxanthin. |
| 2. | Food is stored as floridean starch. |
| 3. | Vegetative cells have wall made of cellulose, pectin and polysulphate esters. |
| 4. | Flagellar number and insertions are 2, equal and apical. |
Subtopic: Pheophyceae: Brown Algae |
From NCERT
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Sexual reproduction is oogamous and accompanied by complete post-fertilization developments in the members of:
1. Chlorophyceae
2. Phaeophyceae
3. Rhodophyceae
4. Both Chlorophyceae and Phaeophyceae
Subtopic: Rhodophyceae: Red Algae and Importance of Algae |
78%
From NCERT
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All the following are members of rhodophyceae except:
| 1. | Polysiphonia | 2. | Laminaria |
| 3. | Gracilaria | 4. | Gelidium |
Subtopic: Rhodophyceae: Red Algae and Importance of Algae |
94%
From NCERT
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Which of the following is expected to be found in deepest waters?
| 1. | Red algae | 2. | Green algae |
| 3. | Brown algae | 4. | Blue green algae |
Subtopic: Rhodophyceae: Red Algae and Importance of Algae |
88%
From NCERT
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