What is the general function of an excitable membrane?
A) Excitable membranes allow ions to leak across ion channels.
B) Excitable membranes are on cells with extracellular receptors for binding chemicals.
C) Excitable membranes permit rapid communication between different parts of a cell.
D) Excitable membranes function when the intracellular fluid and extracellular fluid compositions match.
E) Excitable membranes function in slow, endocrine cell-cell communication.
Answer: C
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