Which of the following is incorrect w.r.t. junction and its funct…

MCQ

Which of the following is incorrect w.r.t. junction and its function?

✓
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

✓

Answer

Correct option: A.

Tight junction -Promotes leaking of substances across a tissue

a
Tight junctions do not allow leaking of substances across tissue. Plasma membranes in apical parts of adjacent epithelial cells become tightly packed together or are even fused to form tight junctions.