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Junctions that help to stop substancs fr...

Junctions that help to stop substancs from leaking across a tissue.

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**Step-by-Step Solution:** 1. **Identify the Type of Junctions**: The question asks about junctions that prevent substances from leaking across a tissue. The specific type of junctions that serve this function are known as tight junctions. 2. **Understanding Tight Junctions**: Tight junctions are also referred to as occluding junctions. They are multi-protein complexes that form a barrier between epithelial cells. 3. **Function of Tight Junctions**: The primary function of tight junctions is to prevent the leakage of transported solutes and water. They seal the paracellular pathway, which is the space between adjacent cells. ...
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Read the following statements carefully : (1) Gap junction facilitates the cells to communicate with each other by connecting the cytoplasm of two adjoining cells to cytoplasm of two adjoining cells . (2) Adhering junctions help to stop substances from leaking across a tissue . (3) compound epithelium covers the dry surface of the skin only and provides protection against chemical and mechanical stresses. (4) most of the bones in vertebrates embryos are replaced by cartilages in adults. How many of the above statement is/are correct ?

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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Which cell junction help to stop substances from leaking across a tissue ?

Consider the following statements (i) - (iii), each with one or two blanks (i) Bones have a hard and non-pliable ground substance rich in ul(1) and ul(2) which give bone its strength (ii) Some of the columnar or cuboidal cells get speciallised for secretion and are called ul(3) epithelium (iii) ul(4) junctions help to stop substances form leaking across a tissue Which one of the following options, gives the correct fills ups for the respective blanks from (1) to (4) in the statements ?

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______ help to stop substances from leaking across a tissue.Choose the option which files the blank correctly.

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Which of the following cell junction is the least permeable and prevents leakage across a tissue ?