For Two Ions That Have Almost Exactly the Same Radius

question 43

Essay

For two ions that have almost exactly the same radius (sodium and calcium), how can voltage-gated ion channels be selectively permeable to one or the other?

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Definitions:

Cyclothymic Disorder

A mood disorder characterized by chronic, fluctuating mood disturbance involving numerous periods of hypomanic symptoms and periods of depressive symptoms.

Mood Swings

Dramatic fluctuations in a person's emotional state, often seen in various mental health conditions but can also occur in the general population.

Manic Episodes

Periods of abnormally elevated mood and energy levels, often found in bipolar disorder, that can affect behavior and functioning.

Bipolar I Disorder

A mental health condition characterized by extreme mood swings that include emotional highs (mania) and lows (depression).