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प्रश्न
Answer the following question.
Describe different types of cell junctions.
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उत्तर
The different types of cell junctions are as follows:
- Gap Junctions (GJs):
These are intercellular connections that allow the passage of ions and small molecules between cells as well as the exchange of chemical messages between cells. - Adherens Junctions (AJs):
They are involved in various signalling pathways and transcriptional regulations. - Desmosomes (Ds):
They provide mechanical strength to epithelial tissue, cardiac muscles and meninges. - Hemidesmosomes (HDs):
They allow the cells to strongly adhere to the underlying basement membrane. These junctions help maintain tissue homeostasis by signalling. - Tight junctions (TJs):
These junctions maintain cell polarity, prevent lateral diffusion of proteins and ions.
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संबंधित प्रश्न
Name one place in living organisms where the following tissues is located:
Squamous epithelium
Name one place in living organisms where the following tissue is located:
Ciliated epithelium
Answer the following question.
What is cell junction?
Lining of small intestine is made up of ______.
Prevention of substances from leaking across the tissue is provided by ______.
Some epithelia are pseudostratified. What does this mean?
An epithelial layer does not allow the regulation of materials between the body and the external environment.
Explain simple epithelium and its types.
Which one of the following types of cell is involved in making of the inner walls of blood vessels?
Name the different cell junctions found in tissues.
