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Neurons are excitable because their membranes are in a state that is:
AVaporised
BPolarised
CNeutralised
DCrystallised
Answer & Solution
Correct answer: B. Polarised
1. A difference of charge is held across the membrane.
2. That difference can be reversed by a stimulus.
3. So the membrane is in a polarised state.
_Source: NCERT Class 11 Biology, Chapter 21, Neural Control and Coordination._
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