Question

Given below are the functions of cell junctions.
1. Help to stop substances from leaking across a tissue.
2. Perform cementing to keep neighbouring cells together.
3. Facilitate the cells to communicate.

Choose the correct option.

• A. 1-Gap junctions, 2-Adhering junctions, 3-Tight junctions
• B. 1-Tight junctions, 2-Adhering junctions, 3-Gap junctions
• C. 1-Adhering junctions, 2-Tight junctions, 3-Gap junctions
• D. 1-Gap junctions, 2-Tight junctions,
  3-Adhering junctions

Answer 1

Answer: (B)

1-Tight junctions, 2-Adhering junctions, 3-Gap junctions

There are three types of cell junctions. They are:
1. Tight junctions: They help to stop substances from leaking across a tissue.
2. Adhering junctions: They perform cementing to keep neighbouring cells together.
3. Gap junctions: They facilitate the cells to communicate with each other by connecting the cytoplasm of adjoining cells.