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Choose the correct sequence for depolarization and repolarization.

(A) Stimulus applied at a site on polarized membrane.
(B) Increased permeability for Na+.
(C) Generation of action potential.
(D) Increase permeability for K+.
(E) Restoration of membrane potential.

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Important Questions on Neural Control and Coordination

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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse

Assertion (A): In myelinated nerve fibres, action potentials are conducted at a faster rate.

Reason (R): The myelin present between nodes of Ranvier has concentrated Na and K voltage-gated channels.

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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
Nissl bodies are mainly composed of
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
Select the incorrect statement regarding synapses:
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
Action potential in neurons is generated by a rapid influx of
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse

Identify A, B, C and D in the following graph regarding nerve impulse transmission.

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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
Stimulation of a muscle fiber by a motor neuron occurs at:
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
The transport of which neutrotransmitter is interfered by cocaine?
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
Receptor sites for neurotransmitters are present on
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
The nerve impulse is carried away from the cell body by which structure of the neuron?
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
Four healthy people in their twenties got involved in injuries resulting in damage and death of few cells of the following. Which of the cells are the least likely to be replaced by new cells?
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
Longest cell in human body may be
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
In PNS, myelinated neurons 
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
Depolarization of axolemma during nerve conduction takes place because of:
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
A bipolar neuron has
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
Saltatory conduction of nerve impulse means:
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
Branched ends of nerve cells are called telodendria which establish the functional contact with other nerve cell. This connection is called
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
Opening of which of the following type of channels is responsible for repolarisation of an axonal membrane?
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
In the following diagram showing axon terminal and synapse A, B, C, D and E respectively, represents:

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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
During the transmission of nerve impulse through a nerve fibre, the potential on the innerside of the plasma membrane has which type of electric charge?
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Biology>Human Physiology>Neural Control and Coordination>Generation and Conduction of Nerve Impulse
During repolarisation of nerve