Gap Junctions

question 13

Multiple Choice

Gap junctions

• A)connect the cytoplasm to the extracellular solution thus allowing transfer of small molecules out of the cell into the extracellular solution.
• B)are essential communication channels between the cell and the extracellular solution.
• C)allow exchange of small molecules between cells within an organ.
• D)allow intercellular exchange of macromolecules.
• E)All of the above.

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