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प्रश्न
Give reasons for
Meristematic cells have a prominent nucleus and dense cytoplasm but they lack vacuole.
उत्तर
Meristematic cells have a prominent nucleus and dense cytoplasm because they are metabolically highly active and are in continuous state of division. Meristematic cells lack vacuole because they do not store food material, waste material, sap, etc.
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संबंधित प्रश्न
Distinguish between Simple epithelium and compound epithelium
Name the tissues found:
at the inner lining of the trachea.
Some epithelia are pseudostratified. What does this mean?
A long tree has several branches. The tissue that helps in the side ways conduction of water in the branches is
Write true (T) or false (F)
The lining of blood vessels, lung alveoli and kidney tubules are all made up of epithelial tissue.
In a certain type of cell division, the diploid number of chromosomes is reduced to half. This kind of division occurs in ______.
The ______ epithelium is also known as the pavement membrane.
An epithelial layer does not allow the regulation of materials between the body and the external environment.
Write one point of difference between
Simple and compound epithelial tissue.
Which one of the following types of cell is involved in making of the inner walls of blood vessels?
