Question

please explain active potassium ion (K+) transport theory?

Answer 1

Movement of molecules across a cell membrane in the direction against their concentration gradient.
metal ion such as K+ require ion pumps to cross membranes and distribute through the body.
for further details:refer to Biology NCERT text book. chapter: Neural control and Coordination. page no. 317 ( generation and conduction of nerve impulse)

Answer 2

METAL ION K+ REQUIRE ION TO CROSS MEMBRANES THROUGH BODY