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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
Differentiate between the following:
Liverworts and Moss
Which is NOT a character of bryophytes?
Which of the following play an important role in plant succession on bare rocks or soil?
Gemmae are present in ______
Bryophytes that prevent soil erosion by forming dense mats on the soil are ______.
The plant body in higher plants is well differentiated and well developed. Roots are the organs used for the purpose of absorption. What is the equivalent of roots in the less developed lower plants?
Draw labelled diagrams of
- Female and male thallus of a liverwort.
- Gametophyte and sporophyte of Funaria.
- Alternation of generation in Angiosperm.
The correct sequence of events in the life cycle of bryophytes is:
- Fusion of antherozoid with egg.
- Attachment of gametophyte to substratum.
- Reduction division to produce haploid spores.
- Formation of sporophyte.
- Release of antherozoids into water.
Choose the correct answer from the option given below:
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:
