NEET 2011
- Exam
- NEET
- Year
- 2011
- Subject
- Zoology
- Chapter
- Neural Control and Coordination
NEET 2011 · Zoology · Neural Control and Coordination
When a neuron is an resting state, i e , not conducting any...
When a neuron is an resting state, , not conducting any impulse, the axonal membrane is
Options
- Aequally permeable to both and ions
- Bimpermeable to both and ions
- Ccomparatively more permeable to ions and nearly impermeable to ions
- Dcomparatively more permeable to ions and nearly impermeable to ions
Correct answer
C. comparatively more permeable to ions and nearly impermeable to ions
Step-by-step solution
Neurons are excitable cells because their membrane are in a polarised state. Different types of selectively permeable channels are present on the neural membrane. When a neuron is not conducting any impulse, ie, resting, the axonal membrane is comparatively more permeable to potassium ion and nearly impermeable to sodium ion \left(\mathrm{Na}^{+}\right).