Diffusion. Passive transport is a way that small molecules or ions move across the cell membrane without input of energy by the cell. ... Diffusion is the movement of molecules from an area of high concentration of the molecules to an area with a lower concentration.
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Definitely hypotonic. isotonic wouldn't change weight and hypertonic would lose weight.
Answer:
its passive transport
Explanation:
The sodium-potassium pump sets the membrane potential of the neuron by keeping the concentrations of Na+ and K+ at constant disequilibrium.
