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What defines a tight junction?
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Made up of CAMs and proteoglycans (glycocalyx)
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Form a channel by joining membrane & channel proteins from adjacent cells
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Allows the least amount of passage.
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None of the above.
That's Correct!
It's Wrong!
A tight junction is a specialized junction between cells that forms a barrier to prevent the passage of molecules and ions between cells. It is made up of integral membrane proteins that join together the plasma membranes of adjacent cells, effectively sealing the space between them. This tight seal restricts the movement of substances, allowing only the least amount of passage between cells. The other options mentioned, such as CAMs and proteoglycans, are not specific to tight junctions and do not define their characteristics.
