Q. No.Fusion of two gametes which are dissimilar in size is termed as
1.
Oogamy
2.
Isogamy
3.
Anisogamy
4.
Zoogamy
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 pteriodophytes |
Plants of this group are diploid and well adapted to extreme conditions. They grow bearing sporophylls in compact structures called cones. The group in reference is
| 1. | Monocots | 2. | Dicots |
| 3. | Pteridophytes | 4. | Gymnosperms |
Protonema is
1. Haploid and is found in mosses
2. Diploid and is found is liverworts
3. Diploid and is found in pteridophytes
4. Haploid and is found in pteridophytes
Antheridium of bryophytes produce _______ antherozoids.
| 1. | Non-motile | 2. | Uni-flagellate |
| 3. | Biflagellate | 4. | Ciliate |
What is the function of the gemmae produced by some liverworts?
1. a water gathering structure
2. a light gathering structure
3. a sexual structure
4. an asexual structure
The life cycle of Ectocarpus, Polysiphonia and kelps is:
1.Diplontic
2.Haplontic
3.Aplantic
4.Haplo-diplontic
1. Unicellular
2. Multicellular
3. Acellular
4. Unicellular or multicellular
Evolutionarily, the first terrestrial plants to possess vascular tissues are:
| 1. | Bryophytes | 2. | Pteridophytes |
| 3. | Gnetales | 4. | Cycads |
All the following are characteristics of bryophytes except:
| 1. | spore producing |
| 2. | dominant gametophyte |
| 3. | lignified tissues |
| 4. | producing antheridium and archegonium |
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