Question

Assertion: Gap junctions perform cementing function to keep the neighbouring cells together.

Reason: Tight junctions facilitate the cells to communicate with each other by connecting the cytoplasm of adjoining cells, for rapid transfer of ions, small and big molecules, etc.

• A. Both assertion and reason are true and reason is the correct
  explanation of assertion
• B. Both assertion and reason are true but reason is not the correct explanation of assertion
• C. Assertion is true but reason is false
• D. Both assertion and reason are false

Answer 1

The correct option is D Both assertion and reason are false

Gap junctions are channels between adjacent cells that facilitate the cells to communicate with each other by connecting the cytoplasm of adjoining cells, for rapid transfer of ions, small and big molecules, etc.

Tight junction is a watertight seal between two adjacent animal cells and prevent molecules from passing in between the cells.