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प्रश्न
How does a gap junction facilitate intercellular communication?
उत्तर
A gap junction facilitates intercellular communication by allowing the small signalling molecules to pass from cell to cell. These are hydrophilic junctions that are made up of two protein cylinders called connexus. The movement of molecules through this channel is controlled by PH and Ca2+ions Concentration.
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संबंधित प्रश्न
Name one place in living organisms where the following tissues is located:
Squamous epithelium
Name any one body part where ciliated epithelium is found in humans. What is its function?
Answer the following question.
What is cell junction?
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?
Intestine absorb the digested food materials. What type of epithelial cells are responsible for that?
Write true (T) or false (F)
Epithelial layer does not allow regulation of materials between body and external environment.
Assertion: Materials are exchanged between epithelial and connective tissues by diffusion.
Reason: Blood vessels are absent in epithelial tissue.
Write the salient features of the compound epithelium.
