Which of the following best describes the function of gap junctions?
A)They create direct connections between the cytoplasm of adjacent animal cells thereby permitting the exchange of water,small ions,and small molecules.
B)They occur when peripheral membrane proteins from neighboring cells line up thereby permitting the exchange of water,small ions,and small molecules.
C)They are intracellular receptors,which associate with signals entering the cell,and often regulate transcriptional processes.
D)They are second messengers that activate protein kinases.The protein kinases then activate or deactivate other proteins.

Question

Quizplus · Accepted Answer

Gap junctions are specialized protein complexes that form channels between adjacent animal cells, allowing the passage of small molecules and ions, including water and other metabolites. They are made of connexin proteins that form a pore between adjacent cells, allowing for direct cytoplasmic continuity. This permits the exchange of essential signaling molecules and nutrients between cells.

Which of the Following Best Describes the Function of Gap