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प्रश्न
State the location and function of different types of meristems.
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उत्तर
Meristems are specialised regions of plant growth. The meristems mark the regions where active cell division and rapid division of cells take place. Meristems are of three types depending on their location.
Apical meristem
It is present at the root apex and the shoot apex. The shoot apical meristem is present at the tip of the shoots and its active division results in the elongation of the stem and formation of new leaves. The root apical meristem helps in root elongation.
Intercalary meristem
It is present between the masses of mature tissues present at the bases of the leaves of grasses. It helps in the regeneration of grasses after they have been grazed by herbivores. Since the intercalary meristem and the apical meristem appear early in a plant’s life, they constitute the primary meristem.
Lateral meristem
It appears in the mature tissues of roots and shoots. It is called the secondary meristem as it appears later in a plant’s life. It helps in adding secondary tissues to the plant body and in increasing the girth of plants. Examples include fascicular cambium, interfascicular cambium, and cork cambium
संबंधित प्रश्न
Where is apical meristem found?
Which living material would you take to demonstrate meristematic tissue?
Fill in the blank
......................... tissue is situated at the tip of root and stem.
Answer in detail.
Which tissue is responsible for the increase in the height of a plant? Where is it locate?
Write a short note on intercalary meristem.
Write one main function of
(a) Apical meristem
(b) Lateral meristem
Write the name of the following tissue.
Tissue is responsible for increasing the height of plants.
Which one of the following pairs is correctly matched?
Name the kind of tissue found in the walls of the veins of the leaves.
List the tissues found in the human heart.
Name the tissues found:
at the tip of a growing stem
Aerenchyma is found in ______.
Parenchyma, collenchyma, Sclerenchyma are______ type of tissue.
Nervous tissue is not found in
Which structure protects the plant body against the invasion of parasites?
A meristematic tissue consists of ______.
The word meristem is derived from the Greek word ______.
The meristem found at the base of internodes is called ______.
How many shoot apical meristems are likely to be present in a twig of a plant possessing, 4 branches and 26 leaves?
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.
