(A) Tight junctions are specialized structures that prevent the leakage of substances across a tissue. They are formed by the fusion of plasma membran

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Tight junction - Promotes leaking of substances across a tissue

(A) Tight junctions are specialized structures that prevent the leakage of substances across a tissue. They are formed by the fusion of plasma membranes in the apical parts of adjacent epithelial cells. Therefore,the statement that tight junctions promote leaking is incorrect.

Class 11 Biology Structural Organisation In Animals Epithelial tissue

Medium

Which of the following is incorrect with respect to junctions and their functions?

A
Tight junction - Promotes leaking of substances across a tissue
B
Adhering junction - Keep neighbouring cells together
C
Gap junction - Connecting the cytoplasm of adjoining cells for rapid transfer of ions and small molecules
D
Gap junction - Facilitates the cells to communicate with each other