alleryStart learning →A nerve impulse travels along a neuron as an electrical signal but crosses a synapse as a
Astronger electrical signal
Bmechanical vibration
Cmagnetic pulse
Dchemical signal
Answer & Solution
Correct answer: D. chemical signal
1. Within a neuron the impulse is an electrical signal.
2. At the synapse it is passed to the next cell as a **chemical signal** (a neurotransmitter).
3. So conduction is electrical along the neuron and chemical across the synapse.
_Source: Karnataka SSLC (KSEEB) Class 10 Science, Ch7 'Control and Coordination', §7.1_
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