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प्रश्न
Write a short note.
Meristematic tissue
उत्तर
Meristematic tissue is present in specific parts of a plant, growth occurs in those parts only. Cells of meristematic tissue contain thick cytoplasm, a conspicuous nucleus and a thin cell wall and are compactly packed together. Vacuoles are usually absent in these cells. These cells are highly active. To bring about plant growth is the main function of meristematic tissue. According to the location, meristematic tissue is of three types as given below.
| Figure | Location | Function |
 |
Apical meristem: At the tip of the root and stem | Increases the length of the root and stem. |
| Intercalary meristem: At the base of the petiole of leaves and of branches. | Growth of branches, formation of leaves and flowers. | |
| Lateral meristem: Lateral sides of root and stem | Increases girth (diameter) of the root and stem. |
APPEARS IN
संबंधित प्रश्न
State the location and function of different types of meristems.
Fill in the blank
......................... tissue is situated at the tip of root and stem.
Write a short note on intercalary meristem.
Write one main function of
(a) Apical meristem
(b) Lateral meristem
What are meristematic tissues? Explain with the help of suitable diagram. Give their classification on the basis of their position in the plant body.
Write the name of the following tissue.
Tissue is responsible for increasing the girth of the stem.
Which one of the following pairs is correctly matched?
Name one place in living organisms where the following tissue is located:
Meristematic tissue
Read the following sentences and identify the correctly matched sentences.
- In exarch condition, the protoxylem lies outside of metaxylem.
- In endarch condition, the protoxylem lie towords the centre.
- In centarch condition, metaxylem lies in the middle of the protoxylem.
- In mesarch condition, protoxylem lies in the middle of the metaxylem.
Girth of stem increases due to
A person met with an accident in which two long bones of hand were dislocated. Which among the following may be the possible reason?
Nervous tissue is not found in
Survival of plants in terrestrial environment has been made possible by the presence of
What is plate meristem?
Match List - I with List - II.
| List - I | List - II | ||
| (a) | Cells with active cell division capacity |
(i) | Vascular tissues |
| (b) | Tissue having all cells similar in structure and function |
(ii) | Meristematic tissue |
| (c) | Tissue having different types of cells |
(iii) | Sclereids |
| (d) | Dead cells with highly thickened walls and narrow lumen |
(iv) | Simple tissue |
Select the correct answer from the options given below.
