Q. No.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.
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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
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| 1. | Polysiphonia | 2. | Laminaria |
| 3. | Gracilaria | 4. | Gelidium |
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| 1. | Red algae | 2. | Green algae |
| 3. | Brown algae | 4. | Blue green algae |
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| Statement I: | Bryophytes usually occur in damp, humid and shaded localities and are not truly ‘successful’ on land. |
| Statement II: | They are dependent on water for sexual reproduction. |
| 1. | Statement I is correct and Statement II is incorrect |
| 2. | Both Statement I and Statement II are correct and Statement II explains Statement I |
| 3. | Statement I is incorrect and Statement II is correct |
| 4. | Both Statement I and Statement II are correct but Statement II does not explain Statement I |
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| 1. | They are dependent on water for sexual reproduction. |
| 2. | Archegonium is flask shaped and produces multiple eggs. |
| 3. | Sporophyte is attached to the photosynthetic gametophytes and derives nourishment from it. |
| 4. | The antherozoids are released into water. |
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Regarding Marchantia:
| I: | The thallus is dorsi-ventral and closely appressed to the substrate. |
| II: | The plant is monoecious. |
| 1. | Both I and II are incorrect |
| 2. | Only I is incorrect |
| 3. | Only I is correct |
| 4. | Both I and II are correct |
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| I: | Asexual reproduction is not seen. |
| II: | Sexual reproduction takes place by multicellular gemmae. |
1. Both I and II are incorrect
2. Only I is incorrect
3. Only I is correct
4. Both I and II are correct
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I. Liverworts
II. Mosses
| 1. Only I | 2. Only II |
| 3. Both I and II | 4. Neither I nor II |
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| 1. | Funaria | 2. | Marchantia |
| 3. | Polytrichum | 4. | Sphagnum |
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