NEET Zoology (general) MCQ Question
Which of the following combinations correctly describe the properties and functions of neurons?
Neurons transmit impulses towards the synapse via dendrites and away from the cell body through axons.
Myelinated axons conduct impulses faster than unmyelinated axons due to the presence of synaptic knobs.
Bipolar neurons have multiple dendrites and are primarily located in the central nervous system.
The resting potential of a neuron is achieved when the membrane is polarized and sodium ions are outside the cell.
Correct Answer
Detailed Explanation
Option A is correct as it accurately describes the direction of impulse transmission in neurons. Option B is misleading because while myelinated axons do conduct impulses faster, synaptic knobs are not involved in conduction speed. Option C is incorrect since bipolar neurons have one axon and one dendrite, and they are primarily found in the retina, not specifically in the central nervous system. Option D is partially correct but doesn't fully explain the resting potential context.
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