Advertisements
Advertisements
प्रश्न
Stratified epithelial cells have limited role in secretion. Justify their role in our skin.
Advertisements
उत्तर
The stratified epithelium is made of more than one layer of cells and thus has a limited role in secretion and absorption. Their main function is to provide protection against chemical and mechanical stresses. They cover the dry surface of the skin.
APPEARS IN
संबंधित प्रश्न
What is the following and where do you find them in animal body?
Ciliated epithelium
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.
Fill in the blank
Epithelial tissue is made of cells without any ...................... spaces.
The following statement is wrong. Rewrite it correctly by changing either one or two words.
Glandular epithelium is present in kidneys.
Answer the following question.
Describe different types of cell junctions.
Epithelial cells with cilia are found in ______ of our body.
Lining of small intestine is made up of ______.
State whether true or false. If false, correct the statement.
Epithelial tissue is protective tissue in animal body.
The ciliated epithelium lines the______.
Some epithelia are pseudostratified. What does this mean?
If a potted plant is covered with a glass jar, water vapours appear on the wall of glass jar. Explain why?
Write true (T) or false (F)
Epithelial cells have a lot of intercellular spaces.
Describe the structure and function of different types of epithelial tissues. Draw diagram of each type 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.
Assertion: Materials are exchanged between epithelial and connective tissues by diffusion.
Reason: Blood vessels are absent in epithelial tissue.
Write one point of difference between
Simple and compound epithelial tissue.
How does a gap junction facilitate intercellular communication?
Classify and describe epithelial tissue on the basis of structural modifications of cells.
