NEST2020BiologyNeural Control and Coordination
Graphical representation of action potential across the membrane of a neuron is shown below. The different stages of the action potential are shown with numbers 1 to 5 . Choose the correct statement about the Na ⁺ and K ⁺ ion concentration across the membrane in stage 4 .
Options
- AOpening of K ⁺ ion channels, leading to K ⁺ efflux.
- BEquilibrium is reached between Na ⁺ and K ⁺ across the membrane.
- CBoth K ⁺ and Na ⁺ ion channels are open leading to more K ⁺ influx than that of Na ⁺ .
- DOpening of Na ⁺ ion channels, leading to Na ⁺ efflux.
Correct answer
A. Opening of K ⁺ ion channels, leading to K ⁺ efflux.
Step-by-step solution
No solution available.