Which of the following is (are) true of ligand-gated ion channels?

Which of the following is (are) true of ligand-gated ion channels?




A) They are important in the nervous system.
B) They lead to changes in sodium and calcium concentrations in cells.
C) They open or close in response to a chemical signal.
D) Only A and B are true.
E) A, B, and C are true.


Answer: E


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