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प्रश्न
Write true (T) or false (F)
Epithelial cells have a lot of intercellular spaces.
विकल्प
True
False
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उत्तर
False
Epithelial cells have almost no intercellular spaces.
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संबंधित प्रश्न
Describe various types of epithelial tissues with the help of labelled diagrams
Based on the following information, identify the three types of epithelial tissue in the figures given below :
| a |  |
b |  |
c |  |
(1) Cuboidal epithelium: It consists of a single layer of cuboidal cells.
(2) Columnar epithelium: It is composed of tall, cylindrical cells with oval nuclei usually placed at the base of the cells.
(3) Ciliated epithelium: It consists of cells being hair-like cilia on their free surface.
Name any one body part where ciliated epithelium is found in humans. What is its function?
How many types of epithelial tissues have you studied? Write their functions.
Give structure, types and functions in brief of the following:
Epithelial tissue
Answer the following question.
Describe different types of cell junctions.
If a potted plant is covered with a glass jar, water vapours appear on the wall of glass jar. Explain why?
An epithelial layer does not allow the regulation of materials between the body and the external environment.
Glandular epithelium gives a stratified appearance.
The body of sponges does not possess tissue level of organisation though it is made of thousands of cells. Comment.
