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Q. No.Mannitol is a sugar alcohol. It is stored as food in
1.
Fucus
2.
Gracillaria
3.
Chara
4.
Porphyra
88%
Level 1: 80%+
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Consider the given statements regarding certain pteridophytes:
| Statement I: | In Selaginella and Equisetum, sporophylls may form distinct compact structures called strobili or cones. |
| Statement II: | Selaginella and Salvinia are heterosporous. |
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: Pteridophytes: Heterospory |
89%
Level 1: 80%+
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Subtopic: Pheophyceae: Brown Algae |
85%
Level 1: 80%+
Hints
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 |
75%
Level 2: 60%+
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All the following are examples of members of Chlorophyceae except:
1. Ectocarpus
2. Chlamydomanas
3. Chara
4. Ulothrix
1. Ectocarpus
2. Chlamydomanas
3. Chara
4. Ulothrix
Subtopic: Chlorophyceae: Green Algae: II |
92%
Level 1: 80%+
Hints
Identify the incorrect statement regarding classification of plants given by George Bentham and Joseph Dalton Hooker:
| 1. | It is a natural system of classification. |
| 2. | It totally disregarded the external characters and did not include them to classify plants. |
| 3. | It used internal features like structure, anatomy, embryology and phytochemistry. |
| 4. | It was based on natural affinities among the organisms. |
Subtopic: Classification System: II |
80%
Level 1: 80%+
Hints
Consider the given two statements:
| Assertion (A): | The artificial systems used for classification of living organisms are not very acceptable to taxonomists. |
| Reason (R): | The artificial systems give more weightage to vegetative characteristics and no weightage to sexual characteristics and the sexual characteristics are easily affected by environment. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are False. |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are True but (R) does not correctly explain (A). |
Subtopic: Classification System |
75%
Level 2: 60%+
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Identify the correct match:
1. Only I
2. Only II and III
3. Only III
4. I, II and III
| I: | Green algae | 2-8 flagella; equal in length and apical in insertion |
| II: | Brown algae | Food stored as floridean starch |
| III: | Red algae | Pear-shaped gametes bearing two laterally attached flagella |
2. Only II and III
3. Only III
4. I, II and III
Subtopic: Algae |
88%
Level 1: 80%+
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What would be true regarding structures labelled as A and B in the given diagram of Funaria, a moss?
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
| I: | A is the gametophyte and B is the sporophyte. |
| II: | The ploidy of cells in A will be haploid and the ploidy of cells in B will be diploid. |
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
Subtopic: Bryophytes |
70%
Level 2: 60%+
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The giant redwood tree Sequoia, one of the tallest tree species, is a:
| 1. | Pteridophyte | 2. | Monocot angiosperm |
| 3. | Dicot angiosperm | 4. | Gymnosperm |
Subtopic: Gymnosperms |
89%
Level 1: 80%+
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