Read the following five statements (I to V) and select the option with all correct statements.
| I. | Mosses and lichens are the first organisms to colonise a bare rock. |
| II. | Selaginella is a homosporous pteridophyte. |
| III. | Coralloid roots in Cycas have VAM. |
| IV. | main plant body in bryophytes is gametophytic, whereas in pteridophytes it is sporophytic. |
| V. | In gymnosperms, male and female gametophytes are present within sporangia located on sporophyte. |
1. I, III and IV
2. II, III and IV
3. I, IV and V
4. II, III and V
Which of the following is correctly matched without exception in regard to plant classification?
|
1. |
Family |
- Poaceae - ae |
|
2. |
Division |
- Pteridophyta - phyta |
|
3. |
Class |
- Bryopsida - sida |
|
4. |
Genus |
- Solanum - um |
Match the following selected the correct option.
| Column - I | Column - II | ||
| A. | Pteris | (i) | Gymnosperm |
| B. | Cycas | (ii) | Bryophyte |
| C. | Sphagnum | (iii) | Algae |
| D. | Sargassum | (iv) | Pteridophyta |
1. A - (iv), B - (ii), C - (i), D - (iii)
2. A - (iv), B - (i), C - (ii), D - (iii)
3. A - (ii), B - (iii), C - (iv), D - (i)
4. A - (i), B - (iv), C - (iii), D - (ii)
Which of the following are homosporous pteridophytes?
| I. | Selaginella |
| II. | Lycopodium |
| III. | Salvinia |
| IV. | Equisetum |
1. I and IV only
2. II and III only
3. II and IV only
4. III and IV only
Pick the correct group consisting of all genera exhibiting homospory.
| 1. | Lycopodium, Psilotum, Selaginella, Equisetum |
| 2. | Equisetum, Pteris, Salvinia, Psilotum |
| 3. | Salvinia, Pteris, Lycopodium, Selaginella |
| 4. | Equisetum, Psilotum, Lycopodium, Pteris |
A Prothallus is
1. A structure in pteridophytes formed before the thallus develops
2. A sporophytic free living structure formed in pteridophytes
3. A gametophyte free living structure formed in pteridophytes
4. A primitive structure formed after fertilization in pteridophytes
In bryophytes and pteridophytes, transport of male gametes requires?
| 1. | insects | 2. | birds |
| 3. | water | 4. | wind |
Gametophyte in the pteridophytes is
(i) Small, inconspicuous.
(ii) Long lived, unicellular.
(iii) Mostly photosynthetic thalloid or saprophytic.
(iv) Short lived, haploid.
How many statements are correct with respect to gametophyte?
1. Two
2.Three
3. Four
4. One
Development of the zygotes into young embryo takes within the female gametophytes in
1. Adiantum.
2. Selaginella.
3. Riccia.
4. Batrachospermum.
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