Beginning with the germination of a moss spore, what is the sequence of structures that develop after germination?
i. embryo
ii. gametes
iii. sporophyte
iv. protonema
v. gametophore
1. iv →i → iii → v → ii
2. iv → iii → v → ii → i
3. iv → v → ii → i → iii
4. iii → iv → v → ii → i
i. embryo
ii. gametes
iii. sporophyte
iv. protonema
v. gametophore
1. iv →i → iii → v → ii
2. iv → iii → v → ii → i
3. iv → v → ii → i → iii
4. iii → iv → v → ii → i
Subtopic: Bryophytes | Bryophytes (Anthoceropsida) |
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In the following questions a statement of assertion (A) is followed by a statement of reason (R).
1. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)
2. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
3. If Assertion is true statement but Reason is false, then mark (3)
4. If both Assertion and Reason are false statements, then mark (4)
A: Mosses are evolved from algae.
R: Protonema of mosses is similar to some green algae.
1. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)
2. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
3. If Assertion is true statement but Reason is false, then mark (3)
4. If both Assertion and Reason are false statements, then mark (4)
A: Mosses are evolved from algae.
R: Protonema of mosses is similar to some green algae.
Subtopic: Algae | Bryophytes |
52%
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Which of the following is true of the life cycle of mosses?
1. The haploid generation grows on the sporophyte generation
2. Spores are primarily distributed by water currents
3. Antheridia and archegonia are produced by gametophytes
4. The sporophyte generation is dominant
1. The haploid generation grows on the sporophyte generation
2. Spores are primarily distributed by water currents
3. Antheridia and archegonia are produced by gametophytes
4. The sporophyte generation is dominant
Subtopic: Bryophytes |
57%
From NCERT
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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
1. haploid nuclei
2. mitochondria
3. cell walls
4. chloroplasts
Subtopic: General Account of Angiosperms (OLD NCERT) | Life Cycle Patterns in Plants (OLD NCERT) |
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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
Subtopic: General Account of Angiosperms (OLD NCERT) |
73%
From NCERT
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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 |
83%
From NCERT
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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%
From NCERT
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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
Subtopic: General Account of Angiosperms (OLD NCERT) |
94%
From NCERT
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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 |
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)
Subtopic: Pteridophytes | Gymnosperms |
94%
From NCERT
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Match List I with List II
Choose the correct answer from the options given below:
1. A-II B-III C-I D-IV
2. A-III B-II C-I D-IV
3. A-II B-III C-IV D-I
4. A-I B-II C-III D-IV
| List I | List II |
| A. Bryophytes | I. Cycas |
| B. Algae | II. Sphagnum |
| C. Pteridophytes | III. Chlamydomonas |
| D. Gymnosperms | IV. Selaginella |
1. A-II B-III C-I D-IV
2. A-III B-II C-I D-IV
3. A-II B-III C-IV D-I
4. A-I B-II C-III D-IV
Subtopic: Algae | Bryophytes | Pteridophytes | Gymnosperms |
73%
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