Evaze5717 Evaze5717

14-03-2024
Biology

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How does potassium affect heart rate? Multiple Choice
A) It affects the electrical potential of the cell membranes.
B) It acts as a gate for sodium channels in cell membranes.
C) It binds calcium, not allowing calcium to enter the sarcoplasm.
D) It binds to troponin, blocking calcium from binding to the site.

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