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Some epithelia are pseudostratified. What does this mean? - Zoology

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प्रश्न

Some epithelia are pseudostratified. What does this mean?

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उत्तर

Pseudostratified epithelial cells are columnar but unequal in size. Although the epithelium is single-layered yet it appears to be multilayered due to the fact that nuclei lie at different levels in different cells.

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पाठ 3: Tissue Level of Organisation - Evaluation [पृष्ठ ४६]

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सामाचीर कलवी Zoology [English] Class 11 TN Board
पाठ 3 Tissue Level of Organisation
Evaluation | Q 6. | पृष्ठ ४६
सामाचीर कलवी Biology (Zoology) [English] Class 11 TN Board
पाठ 3 Tissue Level of Organisation
Evaluation | Q 6. | पृष्ठ ४६

संबंधित प्रश्‍न

Fill in the blank  

Epithelial tissue is made of cells without any ...................... spaces.


Name one place in living organisms where the following tissue is located: 

Ciliated epithelium


Name the tissues found:
at the inner lining of the trachea.


Name the tissues found:
in the testes and ovaries.


Answer the following question.

What is cell junction?


Epithelial cells with cilia are found in ______ of our body.


Lining of small intestine is made up of ______.


Intestine absorb the digested food materials. What type of epithelial cells are responsible for that?


Fats are stored in human body as


A long tree has several branches. The tissue that helps in the side ways conduction of water in the branches is


Give reasons for

Meristematic cells have a prominent nucleus and dense cytoplasm but they lack vacuole.


In a certain type of cell division, the diploid number of chromosomes is reduced to half. This kind of division occurs in ______.


An epithelial layer does not allow the regulation of materials between the body and the external environment.


Write the salient features of the compound epithelium.


Explain simple epithelium and its types.


Identify the types of cell junctions that help to stop the leakage of the substances across tissue and facilitation of communication with neighbouring cells via rapid transfer of ions and molecules.


The body of sponges does not possess tissue level of organisation though it is made of thousands of cells. Comment.


Stratified epithelial cells have limited role in secretion. Justify their role in our skin.


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