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Q. No.Which of the following feature given in column I is not correctly matched with its correct description given in Column II with respect to members of Chlorophyceae?
Column I
Column II
1.
Main photosynthetic pigment
Chlorophyll a, b
2.
Cell wall
Inner layer of cellulose and outer layer of pectose
3.
Stored food
Starch
4.
Flagellar number and insertion
2-8. unequal. basal
Subtopic: Chlorophyceae: Green Algae: II |
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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
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 |
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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 |
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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 |
82%
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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 |
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Which of the following statement will not be true regarding bryophytes?
| 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. |
Subtopic: Bryophytes |
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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 |
Subtopic: Bryophytes (Liverworts) |
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Sporophyte is differentiated into a foot, a seta and a capsule in:
I. Liverworts
II. Mosses
I. Liverworts
II. Mosses
| 1. Only I | 2. Only II |
| 3. Both I and II | 4. Neither I nor II |
Subtopic: Bryophytes (Liverworts) |
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Consider the given statements regarding Mosses:
1. Only I, II and III are correct
2. Only I, III and IV are correct
3. Only II, III and IV are correct
4. I, II, III and IV are correct
| I: | Protonema is a gametophyte stage that is creeping, green, branched and frequently filamentous. |
| II: | Leafy stage bears sex organs and is attached to the soil through multicellular and branched rhizoids. |
| III: | Sex organs are produced at the apex of the leafy shoot. |
| IV: | They have an elaborate mechanism of spore dispersal. |
1. Only I, II and III are correct
2. Only I, III and IV are correct
3. Only II, III and IV are correct
4. I, II, III and IV are correct
Subtopic: Bryophytes (Anthoceropsida) |
82%
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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):
| Assertion (A): | Heterospory in some pteridophytes paved the way for the evolution of seeds in higher plants. |
| Reason (R): | The megaspores and microspores in heterosporous ferns give rise to female and male gametophytes respectively. |
In the light of the above statements choose the correct answer from the options given below:
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Pteridophytes: Heterospory |
52%
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