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Q. No.All of the following cellular structures are functionally important in cells of the gametophytes of both angiosperms and gymnosperms except
1. haploid nuclei
2. mitochondria
3. cell walls
4. chloroplasts
Level 3: 35%-60%
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Which of the following is an example of alternation of generations?
1. A grandparent and grandchild each have dark hair, but the parent has blond hair.
2. A diploid plant (sporophyte) produces, by meiosis, a spore that gives rise to a multicellular, haploid pollen grain (gametophyte).
3. A diploid animal produces gametes by meiosis, and the gametes undergo fertilization to produce a diploid zygote.
4. A haploid mushroom produces gametes by mitosis, and the gametes undergo fertilization, which is immediately followed by meiosis
1. A grandparent and grandchild each have dark hair, but the parent has blond hair.
2. A diploid plant (sporophyte) produces, by meiosis, a spore that gives rise to a multicellular, haploid pollen grain (gametophyte).
3. A diploid animal produces gametes by meiosis, and the gametes undergo fertilization to produce a diploid zygote.
4. A haploid mushroom produces gametes by mitosis, and the gametes undergo fertilization, which is immediately followed by meiosis
73%
Level 2: 60%+
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Which of the following first terrestrial plants possess xylem and phloem and have sporophyte as a main plant body ?
1. Selaginella
2. Sphagnum
3. Pinus
4. Eucalyptus
1. Selaginella
2. Sphagnum
3. Pinus
4. Eucalyptus
Subtopic: Pteridophytes |
84%
Level 1: 80%+
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Match List I with List II
Choose the correct answer from the options given below
1. A-(I), B-(II), C-(III), D-(IV)
2. A-(II), B-(I), C-(IV), D-(III)
3. A-(IV), B-(III), C-(I), D-(II)
4. A-(III), B-(IV), C-(II), D-(I)
| List I | List II |
| A. Colonial algae | I. Cycas |
| B. Agar | II. Sphagnum |
| C. Coralloid root | III. Gelidium |
| D. Peat | IV. Volvox |
1. A-(I), B-(II), C-(III), D-(IV)
2. A-(II), B-(I), C-(IV), D-(III)
3. A-(IV), B-(III), C-(I), D-(II)
4. A-(III), B-(IV), C-(II), D-(I)
Subtopic: Rhodophyceae: Red Algae and Importance of Algae | Bryophytes | Chlorophyceae: Green Algae | Gymnosperms |
96%
Level 1: 80%+
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"Triple fusion" occurs in which group of plants?
1. Gymnosperm
2. Angiosperm
3. Pteridophyte
4. Bryophyte
1. Gymnosperm
2. Angiosperm
3. Pteridophyte
4. Bryophyte
94%
Level 1: 80%+
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Match List-I with List-II
Choose the correct answer from the options given below
1. A-(I), B-(IV), C-(III), D-(II)
2. A-(IV), B-(III), C-(II), D-(I)
3. A-(III), B-(II), C-(I), D-(IV)
4. A-(II), B-(I), C-(IV), D-(III)
| List-I | List-II | ||
| A. | Penicillium | I. | TMC |
| B. | Retrovirus | II. | Antibiotic |
| C. | Heterosporous | III. | Sequoia |
| D. | Giant Redwood tree | IV. | Selaginella |
1. A-(I), B-(IV), C-(III), D-(II)
2. A-(IV), B-(III), C-(II), D-(I)
3. A-(III), B-(II), C-(I), D-(IV)
4. A-(II), B-(I), C-(IV), D-(III)
Subtopic: Pteridophytes | Gymnosperms |
94%
Level 1: 80%+
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Which of the following characteristics differentiate bryophytes from algae
Choose the correct answer from the options given below:
1. A, C, D only
2. A, B, C, D only
3. A, B, E only
4. B, C, D, E only
| A. | Attachment to a substratum by unicellular rhizoids |
| B. | Haploid condition |
| C. | Filamentous body |
| D. | Unicellularity and colonial habitat |
| E. | Lack of true roots and stem |
1. A, C, D only
2. A, B, C, D only
3. A, B, E only
4. B, C, D, E only
Subtopic: Algae | Bryophytes |
Level 3: 35%-60%
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Match List I with List II:
Choose the correct answer from the options given below:
1. A-II, B-I, C-IV, D-III
2. A-II, B-III, C-IV, D-I
3. A-II, B-I, C-III, D-IV
4. A-II, B-III, C-I, D-IV
| List I | List II |
| A. Isogamous | I. Cycas |
| B. Heterosporous | II. Spirogyra |
| C. Gemmae | III. Selaginella |
| D. Coralloid root | IV. Marchantia |
1. A-II, B-I, C-IV, D-III
2. A-II, B-III, C-IV, D-I
3. A-II, B-I, C-III, D-IV
4. A-II, B-III, C-I, D-IV
Subtopic: Bryophytes | Bryophytes (Liverworts) | Chlorophyceae: Green Algae | Gymnosperms |
87%
Level 1: 80%+
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Given below are two statements
In light of the above statements, choose the most appropriate answer from the options given below
| Statement I: | In Phaephyceae, laminarin is the stored food and major pigments are chlorophyll a & b |
| Statement II: | In Rhodophyceae, Floridean starch is the sored food and the major pigments are chlorophyll-a, b and Phycoerythrin |
| 1. | Both statement I and statement II are correct |
| 2. | Both statement I and statement II are incorrect |
| 3. | Statement I is correct but statement II is incorrect |
| 4. | Statement I is incorrect but statement II is correct |
Subtopic: Pheophyceae: Brown Algae | Rhodophyceae: Red Algae and Importance of Algae |
79%
Level 2: 60%+
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The spread of living pteridophytes is limited and restricted to narrow geographical regions because
| 1. | Gametophytes are dependent on sporophytes |
| 2. | Sporophytes require cool, damp place to produce gametes |
| 3. | Gametophytes require cool, damp and shady places to grow. |
| 4. | They do not need water for fertilisation |
Subtopic: Pteridophytes |
70%
Level 2: 60%+
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