Advertisements
Advertisements
प्रश्न
Girth of a maize plant does not increase over a period of time. Justify.
टीपा लिहा
उत्तर
- Maize plant belongs to class monocotyledonae.
- In monocotyledonous plants, vascular bundles are closed type.
- Thus, cambium is absent between xylem and phloem, due to which secondary growth does not occur in these plants.
- Increase in girth of a stem occurs by secondary growth. Thus, the girth of a maize plant does not increase over a period of time.
shaalaa.com
Salient Features of Major Plant Groups Under Cryptogams
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
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 |
Fern is a vascular plant. Yet it is not considered a Phanerogams. Why?
Draw a neat labelled diagram.
Spirogyra
Draw a neat labelled diagram.
Chlamydomonas
Draw a neat labelled diagram.
Funaria
Draw a neat labelled diagram.
Nephrolepis
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
