CBSE Class 9 Answered
What are apical, lateral and intercalary meristems?
Asked by Topperlearning User | 21 Mar, 2016, 07:49: AM
Expert Answer
1. Apical Meristem:
- The apical meristem is located at the growing points of the stem, roots, branches and in growing young leaves near the tips of the stem and axillary buds.
- It enables the roots and stem to grow by increasing the length of plants.
2. Lateral Meristem:
- Lateral meristem is present laterally (i.e. on the sides) on the roots and stem and is situated parallel to the longitudinal axis below the bark.
- It is also found in vascular bundles of dicot roots and stems.
- The girth and width (diameter or thickness) of the stem or root increases because of the lateral meristem.
3. Intercalary Meristem:
-
It is located at the internodes or the stem regions where the leaf is attached to its base, especially of certain monocotyledons.
-
The cells of the intercalary meristem are active and continuously form several new cells.
Answered by | 21 Mar, 2016, 09:49: AM
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