03. Generation, Conduction and Transmission of Impulse
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Neural Control and Coordination

284620 Direction for: In each of the following questions a statement of Assertion is given followed by a corresponding statement of Reason just below it. Of the statements mark as Assertion: The imbalance in concentration of sodium and potassium ions and proteins generates the resting potential.
Reason: To maintain unequal distribution of sodium and potassium, neurons use electrical energy.

1 If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 If Assertion is true but Reason is false.
4 If both Assertion and Reason are false.
VMMC-2009
Neural Control and Coordination

284622 Which of the following statement is wrong regarding conduction of nerve impulse?

1 In a resting neuron, the axonal membrane is more permeable to \(\mathrm{K}^{+}\)ions and nearly impermeable to \(\mathrm{Na}^{+}\)ions
2 Fluid outside the axon has a high concentration of \(\mathrm{Na}^{+}\)and low concentration of \(\mathrm{K}^{+}\), in a resting neuron
3 Ionic gradients are maintained by \(\mathrm{Na}-\mathrm{K}\) pumps across the resting membrane, which transport \(3 \mathrm{Na}^{+}\)ions outwards for \(2 \mathrm{~K}^{+}\)ions into the cell
4 Resting potential is the electrical potential difference across the resting membrane
5 A neuron is polarized only when the outer surface of the axonal membrane possess a negative charge and its inner surface is positively charged
Kerala PMT-2014
Neural Control and Coordination

284623 Which one of the following acts solely as an inhibitory neurotransmitter?

1 Nor epinephrine
2 Gamma \((\gamma)\) amino butyric acid (GABA)
3 Acetylcholine
4 Dopamine
WB JEE-2015
Neural Control and Coordination

284624 Choose the correct statement

1 Non myelinated nerve fibres are found in spinal and cranial nerves.
2 Retina has multipolar neurons.
3 Electrical synapses are commonly present in humans.
4 Impulse transmission across an electrical synapse is faster than across a chemical synapse.
5 In a resting neuron, the axoplasm inside the axon contains high concentration of sodium ions.
Kerala PMT-2013
Join With Us for More Updates
Neural Control and Coordination

284620 Direction for: In each of the following questions a statement of Assertion is given followed by a corresponding statement of Reason just below it. Of the statements mark as Assertion: The imbalance in concentration of sodium and potassium ions and proteins generates the resting potential.
Reason: To maintain unequal distribution of sodium and potassium, neurons use electrical energy.

1 If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 If Assertion is true but Reason is false.
4 If both Assertion and Reason are false.
VMMC-2009
Neural Control and Coordination

284622 Which of the following statement is wrong regarding conduction of nerve impulse?

1 In a resting neuron, the axonal membrane is more permeable to \(\mathrm{K}^{+}\)ions and nearly impermeable to \(\mathrm{Na}^{+}\)ions
2 Fluid outside the axon has a high concentration of \(\mathrm{Na}^{+}\)and low concentration of \(\mathrm{K}^{+}\), in a resting neuron
3 Ionic gradients are maintained by \(\mathrm{Na}-\mathrm{K}\) pumps across the resting membrane, which transport \(3 \mathrm{Na}^{+}\)ions outwards for \(2 \mathrm{~K}^{+}\)ions into the cell
4 Resting potential is the electrical potential difference across the resting membrane
5 A neuron is polarized only when the outer surface of the axonal membrane possess a negative charge and its inner surface is positively charged
Kerala PMT-2014
Neural Control and Coordination

284623 Which one of the following acts solely as an inhibitory neurotransmitter?

1 Nor epinephrine
2 Gamma \((\gamma)\) amino butyric acid (GABA)
3 Acetylcholine
4 Dopamine
WB JEE-2015
Neural Control and Coordination

284624 Choose the correct statement

1 Non myelinated nerve fibres are found in spinal and cranial nerves.
2 Retina has multipolar neurons.
3 Electrical synapses are commonly present in humans.
4 Impulse transmission across an electrical synapse is faster than across a chemical synapse.
5 In a resting neuron, the axoplasm inside the axon contains high concentration of sodium ions.
Kerala PMT-2013
For More Updates join with Us
Neural Control and Coordination

284620 Direction for: In each of the following questions a statement of Assertion is given followed by a corresponding statement of Reason just below it. Of the statements mark as Assertion: The imbalance in concentration of sodium and potassium ions and proteins generates the resting potential.
Reason: To maintain unequal distribution of sodium and potassium, neurons use electrical energy.

1 If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 If Assertion is true but Reason is false.
4 If both Assertion and Reason are false.
VMMC-2009
Neural Control and Coordination

284622 Which of the following statement is wrong regarding conduction of nerve impulse?

1 In a resting neuron, the axonal membrane is more permeable to \(\mathrm{K}^{+}\)ions and nearly impermeable to \(\mathrm{Na}^{+}\)ions
2 Fluid outside the axon has a high concentration of \(\mathrm{Na}^{+}\)and low concentration of \(\mathrm{K}^{+}\), in a resting neuron
3 Ionic gradients are maintained by \(\mathrm{Na}-\mathrm{K}\) pumps across the resting membrane, which transport \(3 \mathrm{Na}^{+}\)ions outwards for \(2 \mathrm{~K}^{+}\)ions into the cell
4 Resting potential is the electrical potential difference across the resting membrane
5 A neuron is polarized only when the outer surface of the axonal membrane possess a negative charge and its inner surface is positively charged
Kerala PMT-2014
Neural Control and Coordination

284623 Which one of the following acts solely as an inhibitory neurotransmitter?

1 Nor epinephrine
2 Gamma \((\gamma)\) amino butyric acid (GABA)
3 Acetylcholine
4 Dopamine
WB JEE-2015
Neural Control and Coordination

284624 Choose the correct statement

1 Non myelinated nerve fibres are found in spinal and cranial nerves.
2 Retina has multipolar neurons.
3 Electrical synapses are commonly present in humans.
4 Impulse transmission across an electrical synapse is faster than across a chemical synapse.
5 In a resting neuron, the axoplasm inside the axon contains high concentration of sodium ions.
Kerala PMT-2013
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Neural Control and Coordination

284620 Direction for: In each of the following questions a statement of Assertion is given followed by a corresponding statement of Reason just below it. Of the statements mark as Assertion: The imbalance in concentration of sodium and potassium ions and proteins generates the resting potential.
Reason: To maintain unequal distribution of sodium and potassium, neurons use electrical energy.

1 If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 If Assertion is true but Reason is false.
4 If both Assertion and Reason are false.
VMMC-2009
Neural Control and Coordination

284622 Which of the following statement is wrong regarding conduction of nerve impulse?

1 In a resting neuron, the axonal membrane is more permeable to \(\mathrm{K}^{+}\)ions and nearly impermeable to \(\mathrm{Na}^{+}\)ions
2 Fluid outside the axon has a high concentration of \(\mathrm{Na}^{+}\)and low concentration of \(\mathrm{K}^{+}\), in a resting neuron
3 Ionic gradients are maintained by \(\mathrm{Na}-\mathrm{K}\) pumps across the resting membrane, which transport \(3 \mathrm{Na}^{+}\)ions outwards for \(2 \mathrm{~K}^{+}\)ions into the cell
4 Resting potential is the electrical potential difference across the resting membrane
5 A neuron is polarized only when the outer surface of the axonal membrane possess a negative charge and its inner surface is positively charged
Kerala PMT-2014
Neural Control and Coordination

284623 Which one of the following acts solely as an inhibitory neurotransmitter?

1 Nor epinephrine
2 Gamma \((\gamma)\) amino butyric acid (GABA)
3 Acetylcholine
4 Dopamine
WB JEE-2015
Neural Control and Coordination

284624 Choose the correct statement

1 Non myelinated nerve fibres are found in spinal and cranial nerves.
2 Retina has multipolar neurons.
3 Electrical synapses are commonly present in humans.
4 Impulse transmission across an electrical synapse is faster than across a chemical synapse.
5 In a resting neuron, the axoplasm inside the axon contains high concentration of sodium ions.
Kerala PMT-2013
Join With Us for More Updates