Which of the following statement(s) regarding cell junctions is/a… - Vidyadip

MCQ

Which of the following statement(s) regarding cell junctions is/are correct?

A
Tight junctions help to stop substances from leaking across a tissue.
B
Adhering junctions perform cementing to keep neighbouring cells together.
C
Gap junctions facilitate the cells to communicate with each other by connecting the cytoplasm of adjoining cells, for rapid transfer of ions, small molecules and sometimes big molecules.
✓
All of the above

✓

Answer

Correct option: D.

All of the above

d
A cell junction (or intercellular bridge) is a type of structure that exists within the tissue of some multicellular organisms, such as animals. Cell junctions consist of multiprotein complexes that provide contact between neighbouring cells or between a cell and the extracellular matrix. There are three major types of cell junctions: adherens junctions, desmosomes and hemidesmosomes (anchoring junctions); gap junctions (communicating junction); tight junctions (occluding junctions).

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