NEETZoologyNeural Control and Coordination
What type of ions are present in the axoplasm of a resting neuron?
Options
- AHigh concentration of sodium ions (Na⁺) and low concentration of potassium ions (K⁺).
- BLow concentration of sodium ions (Na⁺) and high concentration of potassium ions (K⁺).
- CHigh concentration of positively charged proteins and low concentration of negatively charged proteins.
- DLow concentration of positively charged proteins and high concentration of negatively charged proteins.
Correct answer
B. Low concentration of sodium ions (Na⁺) and high concentration of potassium ions (K⁺).
Step-by-step solution
state. The outer surface of the axonal membrane possesses a positive charge while its inner surface becomes negatively charged and therefore is polarised The sodium-potassium pump transports 3 Na⁺ ions outwards for 2 K⁺ ions into the cell. The resting potential of the plasma membrane of a neuron is the electrical potential difference across the resting plasma membrane when the membrane is in a polarised state . When a stimulus is applied at a site on the polarised membrane, the membrane at the site A becomes freely