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प्रश्न
Explain briefly the following term with a suitable example:
Sporophyll
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उत्तर
- Sporophyll is a kind of leaf that has sporangia on it. The sporophylls of other plants, such as the strobili of club moss, gymnosperms, and angiosperm flowers, are modified and emerge in specialist structures.
- Sporophylls are the typical foliage leaves of ferns. Microsporophylls and megasporophylls are the two forms of sporophylls found in most plants.
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संबंधित प्रश्न
Name three groups of plants that bear archegonia. Briefly describe the life cycle of any one of them.
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:
Archegonium
Explain briefly the following term with a suitable example:
Diplontic
Which of the following play an important role in plant succession on bare rocks or soil?
Amphibians of the plant kingdom are
Gemmae are present in ______
Protonema is ______.
In Bryophytes male and female sex organs are called ______ and ______.
Why are bryophytes called the amphibians of the plant kingdom?
Match List - I with List - II.
| List - I | List - II |
| A. Chlorophyll a | I. Yellow-green |
| B. Chlorophyll b | II. Yellow |
| C. Xanthophylls | III. Blue-green |
| D. Carotenoids | IV. Yellow to Yellow-orange |
Choose the option with all correct matches.
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.
Identify the pair of heterosporous pteridophytes among the following:
Assertion A: The first stage of gametophyte in the life cycle of moss is protonema stage.
Reason R: Protonema develops directly from spores produced in capsule.
In the light of the above statements, choose the most appropriate answer from the options given below:
