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प्रश्न
Give reasons for
Meristematic cells have a prominent nucleus and dense cytoplasm but they lack vacuole.
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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
Describe various types of epithelial tissues with the help of labelled diagrams
Fill in the blank
Epithelial tissue is made of cells without any ...................... spaces.
Name the tissues found:
at the inner lining of the trachea.
Answer the following question.
Describe different types of cell junctions.
Epithelial cells with cilia are found in ______ of our body.
Write true (T) or false (F)
The lining of blood vessels, lung alveoli and kidney tubules are all made up of epithelial tissue.
Write true (T) or false (F)
Epithelial layer is permeable layer.
In a certain type of cell division, the diploid number of chromosomes is reduced to half. This kind of division occurs in ______.
Write one point of difference between
Simple and compound epithelial tissue.
Write the appropriate type of tissues in column B according to the functions mentioned in column A.
| Column A | Column B |
| a. Secretion and absorption | i. ______ |
| b. Protective covering | ii. ______ |
| c. Linking and supporting framework | iii. ______ |
