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The cell junctions namely tight, adherin...

The cell junctions namely tight, adhering and gap junctions are found in

A

connective tissues

B

epithelial tissues

C

neutral tissues

D

muscular tissues

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The correct Answer is:
To answer the question regarding the cell junctions namely tight, adhering, and gap junctions, we will follow these steps: ### Step-by-Step Solution: 1. **Identify the Types of Cell Junctions**: - **Tight Junctions**: These junctions are formed by the fusion of transmembrane proteins, creating a barrier that prevents the passage of materials between cells. They are crucial for maintaining the integrity of epithelial layers. - **Adhering Junctions**: Also known as adhesion junctions, these involve a plaque that connects the cytoskeleton of adjacent cells. They provide mechanical stability and are somewhat looser than tight junctions. - **Gap Junctions**: These junctions allow for direct communication between the cytoplasm of adjacent cells through small channels. They enable the transfer of ions and small molecules, facilitating intercellular communication. 2. **Determine the Tissue Types**: - The question asks where these junctions are predominantly found. - **Epithelial Tissue**: This type of tissue lines surfaces and cavities throughout the body and is characterized by closely packed cells. It is known for having tight junctions to prevent leakage, adhering junctions for structural integrity, and gap junctions for communication. 3. **Evaluate the Options**: - **Connective Tissue**: Incorrect, as it primarily supports and binds other tissues and does not typically feature these junctions. - **Epithelial Tissue**: Correct, as it is rich in tight, adhering, and gap junctions. - **Neural Tissue**: Incorrect, as it primarily consists of neurons and glial cells, which do not use these types of junctions in the same way. - **Muscular Tissue**: Incorrect, as muscle cells are connected differently and do not primarily utilize these junctions. 4. **Conclusion**: - The cell junctions namely tight, adhering, and gap junctions are predominantly found in **epithelial tissues**. ### Final Answer: The correct option is **epithelial tissue**. ---

To answer the question regarding the cell junctions namely tight, adhering, and gap junctions, we will follow these steps: ### Step-by-Step Solution: 1. **Identify the Types of Cell Junctions**: - **Tight Junctions**: These junctions are formed by the fusion of transmembrane proteins, creating a barrier that prevents the passage of materials between cells. They are crucial for maintaining the integrity of epithelial layers. - **Adhering Junctions**: Also known as adhesion junctions, these involve a plaque that connects the cytoskeleton of adjacent cells. They provide mechanical stability and are somewhat looser than tight junctions. - **Gap Junctions**: These junctions allow for direct communication between the cytoplasm of adjacent cells through small channels. They enable the transfer of ions and small molecules, facilitating intercellular communication. ...
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Assertion : Cell junctions are present in the epithelium and other tissues Reason : Among cell junctions, adhering junctions help to stop substances from leaking across a tissue

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