Advertisements
Advertisements
प्रश्न
Answer the following question.
Chlamydomonas is microscopic whereas Sargassum is macroscopic; both are algae. Which characters of these plants includes them in one group?
Advertisements
उत्तर
- Both Chlamydomonas and Sargassum belong to division Thallophyta.
- Members of Thallophyta range from unicellular (e.g. Chlamydomonas) to multicellular (e.g. Sargassum).
- Both are aquatic plants containing photosynthetic pigments.
- In both Chlamydomonas and Sargassum plant body is not differentiated into root, stem, and leaves.
- The stored food is mainly in the form of starch and its other forms.
- The cell wall is made up of cellulose and other components. Due to these characters, both Chlamydomonas and Sargassum are included in one group i.e. Thallophyta.
APPEARS IN
संबंधित प्रश्न
Choose the correct option.
Which is the dominant phase in Pteridophytes?
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 |
Differentiate between Dicotyledonae and Monocotyledonae based on the following characters:
- Type of roots
- Venation in the leaves
- Symmetry of flower
Answer the following question.
We observe that land becomes barren soon after monsoon. But in the next monsoon it flourishes again with varieties we observed in season earlier. How you think it takes place?
Fern is a vascular plant. Yet it is not considered a Phanerogams. Why?
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.
Draw a neat labelled diagram.
Spirogyra
Draw a neat labelled diagram.
Chlamydomonas
Draw a neat labelled diagram.
Funaria
