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प्रश्न
Differentiate between the following:
Liverworts and Moss
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उत्तर
| Liverworts | Moss | |
| 1. | The gametophytic plant body might be foliose or thallose, such in the case of Riccia. | The prostrate, branching filamentous, thalloid protonema and the leafy, erect gametophore are the two distinct forms that make up the gametophytic plant body. |
| 2. | Simple multicellular scales and unicellular rhizoids are seen on the vebtral surface of the thallus. | The multicellular rhizoids have oblique septa dividing them into branches. |
| 3. | The dorsal surface of the thallus contains the sex organs, which grow from superficial cells. | The superficial cells near the tip of the leafy gametophyte give rise to the sex organs. |
| 4. | Elaters are often found in most cases, but not in Riccha. | There are no elaters. |
| 5. | There are no stomata on the capsule's wall. | Sporophyte has stomata for gaseous exchange. |
| 6. | The capsule dehisces unevenly. | Dehiscence is regular |
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संबंधित प्रश्न
Mention the ploidy of the following:
Zygote of a fern
Explain briefly the following term with a suitable example:
protonema
Explain briefly the following term with a suitable example:
Antheridium
Explain briefly the following term with a suitable example:
Diplontic
Explain briefly the following term with a suitable example:
Sporophyll
Which is NOT a character of bryophytes?
Amphibians of the plant kingdom are
Gemmae are present in ______
A plant shows thallus level of organization. It shows rhizoids and is haploid. It needs water to complete its life cycle because the male gametes are motile. Identify the group to which it belongs to ______.
Protonema is ______.
In Bryophytes male and female sex organs are called ______ and ______.
Draw labelled diagrams of
- Female and male thallus of a liverwort.
- Gametophyte and sporophyte of Funaria.
- Alternation of generation in Angiosperm.
Match List - I with List - II.
| List - I | List - II |
| A. Pteridophyte | I. Salvia |
| B. Bryophyte | II. Ginkgo |
| C. Angiosperm | III. Polytrichum |
| D. Gymnosperm | IV. Salvinia |
Choose the option with all correct matches.
