- 1(current)
Q. No.Fusion of two gametes which are dissimilar in size is termed as
| 1. | Oogamy | 2. | Isogamy |
| 3. | Anisogamy | 4. | Zoogamy |
Subtopic: Â Algae |
 82%
From NCERT
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Subtopic: Â Algae |Â Pteridophytes |
 92%
From NCERT
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The form and size of algae is highly variable. Which of the following will not be true?
| I: | Volvox is a colonial alga. |
| II: | Ulothrix and Spirogyra do not form filaments. |
| III: | Kelps form massive plants bodies. |
| 1. Only II | 2. Only III |
| 3. Both I and II | 4. Both II and III |
Subtopic: Â Algae |
 83%
From NCERT
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Identify the incorrectly matched pair:
| Alga | Sexual reproduction | |
| I: | Ulothrix | Isogamous; non-flagellated gametes |
| II: | Spirogyra | Isogamous; flagellated gametes |
| III: | Udorina | Anisogamous |
| IV: | Fucus | Oogamous |
| 1. | Only III | 2. | I, II and III |
| 3. | Only I and II | 4. | Only III and IV |
Subtopic: Â Algae |
 71%
From NCERT
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Consider the given statements:
1. I is correct; II is incorrect; III is incorrect
2. I is incorrect; II is correct; III is correct
3. I is incorrect; II is correct; III is incorrect
4. I is correct; II is incorrect; III is correct
| I: | Algin is a hydrocolloid derived from brown algae |
| II: | Carrageen is a hydrocolloid derived from green algae |
| III: | Agar is a complex polysaccharide derived from red algae, Gelidium and Gracilaria |
1. I is correct; II is incorrect; III is incorrect
2. I is incorrect; II is correct; III is correct
3. I is incorrect; II is correct; III is incorrect
4. I is correct; II is incorrect; III is correct
Subtopic: Â Algae |
 84%
From NCERT
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Which of the following is not an example of an edible alga?
| 1. | Porphyra | 2. | Laminaria |
| 3. | Sargassum | 4. | Amanita |
Subtopic: Â Algae |
 86%
From NCERT
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Consider the two statements regarding Chlorella:
1. Statement I is correct but Statement II is incorrect
2. Statement I is incorrect but Statement II is correct
3. Statement I and Statement II are correct
4. Statement I and Statement II are incorrect
| Statement I: | It is single-celled green algae. |
| Statement II: | It is used as a food supplement. |
1. Statement I is correct but Statement II is incorrect
2. Statement I is incorrect but Statement II is correct
3. Statement I and Statement II are correct
4. Statement I and Statement II are incorrect
Subtopic: Â Algae |
 89%
From NCERT
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- 1(current)
Q. No.
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