Gap junctions important for intercellular communication can

Gap junctions, important for intercellular communication, can function as follows: Question 13 options: A. They can be open or closed depending on the appropriate level of signal (e.g., Ca2+). B. They can allow molecules of up to 1,000 Daltons (molecular weight) pass from one to another of interconnected cells. C. Both D. Neither

Solution

C.BOTH

gap junctions are direct cytoplasmic connections between adjacent cells and allow s inorganic or water soluble molecules upto 1000 da to pass. such junctions also allow signaling molecules as cAMP , Ca etc to pass through them mediating responses at tissue level.