wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

In what ways does the interior surface of the membrane of a resting neuron differ from the external surface?

A
Negatively charged with less sodium
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
Negatively charged with more sodium
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
Positively charged with less sodium
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
Positively charged with more sodium
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A Negatively charged with less sodium
When the charge separation across the axonal membrane is maintained, the neuron is said to be at resting membrane potential condition.

A resting neuron is negatively charged on the inside (due to the presence of chlorine ion and protein) and positively charged on the outside (due to presence of sodium ions). Such a charge separation is called polarization and thus resting neuron is said to be polarized.

The difference in the number of positively charged potassium ions (K+) inside and outside the cell dominates the resting membrane potential. The resting membrane potential is a result of different concentrations of Na+ and K+ ions inside and outside the cell.


flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Basic Principle of Neural Communication
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon