Chemistry
Chemistry, 07.11.2019 00:31, MathChic68

Ions move in the direction opposite to that favored by the chemical concentration gradient when
a. potassium ions exit the neuron during the repolarization phase of an action potential
b. they are pumped by proteins that require atp hydrolysis and when the electrical charge gradient repulses or attracts them
c. simple diffusion operates after active transport has been permanently halted by being poisoned proteins leak out of a neuron
d. sodium ions enter a neuron during the depolarization phase of an action potential

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Ions move in the direction opposite to that favored by the chemical concentration gradient when

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