Advertisements
Advertisements
प्रश्न
Fern is a vascular plant. Yet it is not considered a Phanerogams. Why?
Advertisements
उत्तर
Fern belongs to the sub-kingdom Cryptogamae. Cryptogams produce spores but do not produce seeds. Also, in cryptogams, the sex organs are concealed, which is called the fern, a vascular plant. Phanerogams are seed-producing plants, and their sex organs are visible. Phanerogams have flowers or cones containing reproductive organs such as stamens, pistils, and ovules.
Phanerogams have a more complex structure than ferns. Seed plants have roots, stems, and leaves specialized for different functions. For example, roots absorb water and nutrients from the soil, stems support the plant, and leaves carry out photosynthesis. Ferns, conversely, have simple structures that do not have the same degree of specialization. They have rhizomes, which are underground stems, and fronds, which are the leaves that carry out photosynthesis and produce spores.
Hence, the fern is a vascular plant. Yet, it is not considered a Phanerogam.
APPEARS IN
संबंधित प्रश्न
Choose the correct option.
In Bryophytes ______.
How you place the pea, jowar and fern at its proper systematic position? Draw a flow chart.
Complete the following table.
| Groups of algae | Chlorophyceae | Phaeophyceae | Rhodophyceae |
| 1. Stored food | Starch | ||
| 2. Cell Wall | Cellulose and algin | ||
| 3. Major pigments | Chl- a, d and Phycoerythrin |
Answer the following question.
Which of the following nuts will not be enclosed in fruits? What are the peculiar characteristics of these plants? Betel nut/ Areca nut, pine nut, walnut, almond, cashew nut, nutmeg.
Girth of a maize plant does not increase over a period of time. Justify.
Radha observed a plant in rainy season on the compound wall of her school. The plant did not have true roots but rootlike structures were present. Vascular tissue was absent. To which group the plant may belong?
Draw a neat labelled diagram.
Chlamydomonas
Identify the plant group on the basis of the following feature:
Seed producing plants
Identify the plant groups on the basis of the following feature:
Plant body undifferentiated into root, stem, and leaves
Identify the plant group on the basis of the following feature.
Plant needs water for fertilization
