Generation and Conduction of Nerve Impulse
« Previous Topic: Forebrain Next Topic: Hindbrain »
BIOXI21: NEURAL CONTROL AND COORDINATION

340514 The correct sequence for depolarization and return of polarization is(A) Stimulus applied at a site on polarized membrane(B) Increased \(\mathrm{Na}^{+}\)entry into the cell(C) Increase \(\mathrm{K}^{+}\)entry out of the cell(D) Generation of action potential(E) Return of membrane potential

1 \(\mathrm{A} \rightarrow \mathrm{B} \rightarrow \mathrm{D} \rightarrow \mathrm{C} \rightarrow \mathrm{E}\)
2 \(\mathrm{B} \rightarrow \mathrm{A} \rightarrow \mathrm{C} \rightarrow \mathrm{D} \rightarrow \mathrm{E}\)
3 \(\mathrm{A} \rightarrow \mathrm{D} \rightarrow \mathrm{C} \rightarrow \mathrm{B} \rightarrow \mathrm{E}\)
4 \(\mathrm{A} \rightarrow \mathrm{B} \rightarrow \mathrm{C} \rightarrow \mathrm{D} \rightarrow \mathrm{E}\)
BIOXI21: NEURAL CONTROL AND COORDINATION

340515 Potential difference across resting membrane is negatively charged. This is due to differential distribution of the following ions

1 \(\mathrm{Na}^{+}\)and \(\mathrm{K}^{+}\)ions
2 \({\rm{CO}}_3^{ +  + }\) and \(\mathrm{Cl}^{-}\)ions
3 \(\mathrm{Ca}^{++}\)and \(\mathrm{Mg}^{++}\)ions
4 \(\mathrm{Ca}^{++}\) and \(\mathrm{Cl}^{-}\)ions
NCERT Exemplar
BIOXI21: NEURAL CONTROL AND COORDINATION

340516 In the resting stage of a neuron, concentration gradient generates due to the

1 The fluid inside the axon contains a low concentration of \(\mathrm{K}^{+}\), a high concentration of \(\mathrm{Na}^{+}\)
2 The fluid inside the axon contains a low concentration of \(\mathrm{Ca}^{+2}\), a high concentration of \(\mathrm{Na}^{+}\)
3 The fluid outside the axon contains a low concentration of \(\mathrm{K}^{+}\), a high concentration of \(\mathrm{Na}^{+}\)
4 The fluid outside the axon contains a low concentration of \(\mathrm{Na}^{+}\), a high concentration of \(\mathrm{K}^{+}\)
BIOXI21: NEURAL CONTROL AND COORDINATION

340517 Statement A :
At resting, the axonal membrane is comparatively more permeable to potassium ions and nearly impermeable to sodium ions.
Statement B :
The ionic gradients across the resting membrane are maintained by the active transport of ions by sodium-potassium pump which transports 2 sodium ions outwards for potassium ions into the cell.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
BIOXI21: NEURAL CONTROL AND COORDINATION

340518 Durig the propagation of a nerve impulse, the action potential results due to

1 Rapid influx of \(\mathrm{Na}^{+2}\)
2 Rapid influx of \(\mathrm{Na}^{+}\)
3 Rapid influx of \(\mathrm{K}^{+}\)
4 Rapid influx of \(\mathrm{K}^{+2}\)
NEET DIGITAL LIBRARY
BIOXI21: NEURAL CONTROL AND COORDINATION

340514 The correct sequence for depolarization and return of polarization is(A) Stimulus applied at a site on polarized membrane(B) Increased \(\mathrm{Na}^{+}\)entry into the cell(C) Increase \(\mathrm{K}^{+}\)entry out of the cell(D) Generation of action potential(E) Return of membrane potential

1 \(\mathrm{A} \rightarrow \mathrm{B} \rightarrow \mathrm{D} \rightarrow \mathrm{C} \rightarrow \mathrm{E}\)
2 \(\mathrm{B} \rightarrow \mathrm{A} \rightarrow \mathrm{C} \rightarrow \mathrm{D} \rightarrow \mathrm{E}\)
3 \(\mathrm{A} \rightarrow \mathrm{D} \rightarrow \mathrm{C} \rightarrow \mathrm{B} \rightarrow \mathrm{E}\)
4 \(\mathrm{A} \rightarrow \mathrm{B} \rightarrow \mathrm{C} \rightarrow \mathrm{D} \rightarrow \mathrm{E}\)
BIOXI21: NEURAL CONTROL AND COORDINATION

340515 Potential difference across resting membrane is negatively charged. This is due to differential distribution of the following ions

1 \(\mathrm{Na}^{+}\)and \(\mathrm{K}^{+}\)ions
2 \({\rm{CO}}_3^{ +  + }\) and \(\mathrm{Cl}^{-}\)ions
3 \(\mathrm{Ca}^{++}\)and \(\mathrm{Mg}^{++}\)ions
4 \(\mathrm{Ca}^{++}\) and \(\mathrm{Cl}^{-}\)ions
NCERT Exemplar
BIOXI21: NEURAL CONTROL AND COORDINATION

340516 In the resting stage of a neuron, concentration gradient generates due to the

1 The fluid inside the axon contains a low concentration of \(\mathrm{K}^{+}\), a high concentration of \(\mathrm{Na}^{+}\)
2 The fluid inside the axon contains a low concentration of \(\mathrm{Ca}^{+2}\), a high concentration of \(\mathrm{Na}^{+}\)
3 The fluid outside the axon contains a low concentration of \(\mathrm{K}^{+}\), a high concentration of \(\mathrm{Na}^{+}\)
4 The fluid outside the axon contains a low concentration of \(\mathrm{Na}^{+}\), a high concentration of \(\mathrm{K}^{+}\)
BIOXI21: NEURAL CONTROL AND COORDINATION

340517 Statement A :
At resting, the axonal membrane is comparatively more permeable to potassium ions and nearly impermeable to sodium ions.
Statement B :
The ionic gradients across the resting membrane are maintained by the active transport of ions by sodium-potassium pump which transports 2 sodium ions outwards for potassium ions into the cell.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
BIOXI21: NEURAL CONTROL AND COORDINATION

340518 Durig the propagation of a nerve impulse, the action potential results due to

1 Rapid influx of \(\mathrm{Na}^{+2}\)
2 Rapid influx of \(\mathrm{Na}^{+}\)
3 Rapid influx of \(\mathrm{K}^{+}\)
4 Rapid influx of \(\mathrm{K}^{+2}\)
Join With Us for More Updates
BIOXI21: NEURAL CONTROL AND COORDINATION

340514 The correct sequence for depolarization and return of polarization is(A) Stimulus applied at a site on polarized membrane(B) Increased \(\mathrm{Na}^{+}\)entry into the cell(C) Increase \(\mathrm{K}^{+}\)entry out of the cell(D) Generation of action potential(E) Return of membrane potential

1 \(\mathrm{A} \rightarrow \mathrm{B} \rightarrow \mathrm{D} \rightarrow \mathrm{C} \rightarrow \mathrm{E}\)
2 \(\mathrm{B} \rightarrow \mathrm{A} \rightarrow \mathrm{C} \rightarrow \mathrm{D} \rightarrow \mathrm{E}\)
3 \(\mathrm{A} \rightarrow \mathrm{D} \rightarrow \mathrm{C} \rightarrow \mathrm{B} \rightarrow \mathrm{E}\)
4 \(\mathrm{A} \rightarrow \mathrm{B} \rightarrow \mathrm{C} \rightarrow \mathrm{D} \rightarrow \mathrm{E}\)
BIOXI21: NEURAL CONTROL AND COORDINATION

340515 Potential difference across resting membrane is negatively charged. This is due to differential distribution of the following ions

1 \(\mathrm{Na}^{+}\)and \(\mathrm{K}^{+}\)ions
2 \({\rm{CO}}_3^{ +  + }\) and \(\mathrm{Cl}^{-}\)ions
3 \(\mathrm{Ca}^{++}\)and \(\mathrm{Mg}^{++}\)ions
4 \(\mathrm{Ca}^{++}\) and \(\mathrm{Cl}^{-}\)ions
NCERT Exemplar
BIOXI21: NEURAL CONTROL AND COORDINATION

340516 In the resting stage of a neuron, concentration gradient generates due to the

1 The fluid inside the axon contains a low concentration of \(\mathrm{K}^{+}\), a high concentration of \(\mathrm{Na}^{+}\)
2 The fluid inside the axon contains a low concentration of \(\mathrm{Ca}^{+2}\), a high concentration of \(\mathrm{Na}^{+}\)
3 The fluid outside the axon contains a low concentration of \(\mathrm{K}^{+}\), a high concentration of \(\mathrm{Na}^{+}\)
4 The fluid outside the axon contains a low concentration of \(\mathrm{Na}^{+}\), a high concentration of \(\mathrm{K}^{+}\)
BIOXI21: NEURAL CONTROL AND COORDINATION

340517 Statement A :
At resting, the axonal membrane is comparatively more permeable to potassium ions and nearly impermeable to sodium ions.
Statement B :
The ionic gradients across the resting membrane are maintained by the active transport of ions by sodium-potassium pump which transports 2 sodium ions outwards for potassium ions into the cell.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
BIOXI21: NEURAL CONTROL AND COORDINATION

340518 Durig the propagation of a nerve impulse, the action potential results due to

1 Rapid influx of \(\mathrm{Na}^{+2}\)
2 Rapid influx of \(\mathrm{Na}^{+}\)
3 Rapid influx of \(\mathrm{K}^{+}\)
4 Rapid influx of \(\mathrm{K}^{+2}\)
For More Updates join with Us
BIOXI21: NEURAL CONTROL AND COORDINATION

340514 The correct sequence for depolarization and return of polarization is(A) Stimulus applied at a site on polarized membrane(B) Increased \(\mathrm{Na}^{+}\)entry into the cell(C) Increase \(\mathrm{K}^{+}\)entry out of the cell(D) Generation of action potential(E) Return of membrane potential

1 \(\mathrm{A} \rightarrow \mathrm{B} \rightarrow \mathrm{D} \rightarrow \mathrm{C} \rightarrow \mathrm{E}\)
2 \(\mathrm{B} \rightarrow \mathrm{A} \rightarrow \mathrm{C} \rightarrow \mathrm{D} \rightarrow \mathrm{E}\)
3 \(\mathrm{A} \rightarrow \mathrm{D} \rightarrow \mathrm{C} \rightarrow \mathrm{B} \rightarrow \mathrm{E}\)
4 \(\mathrm{A} \rightarrow \mathrm{B} \rightarrow \mathrm{C} \rightarrow \mathrm{D} \rightarrow \mathrm{E}\)
BIOXI21: NEURAL CONTROL AND COORDINATION

340515 Potential difference across resting membrane is negatively charged. This is due to differential distribution of the following ions

1 \(\mathrm{Na}^{+}\)and \(\mathrm{K}^{+}\)ions
2 \({\rm{CO}}_3^{ +  + }\) and \(\mathrm{Cl}^{-}\)ions
3 \(\mathrm{Ca}^{++}\)and \(\mathrm{Mg}^{++}\)ions
4 \(\mathrm{Ca}^{++}\) and \(\mathrm{Cl}^{-}\)ions
NCERT Exemplar
BIOXI21: NEURAL CONTROL AND COORDINATION

340516 In the resting stage of a neuron, concentration gradient generates due to the

1 The fluid inside the axon contains a low concentration of \(\mathrm{K}^{+}\), a high concentration of \(\mathrm{Na}^{+}\)
2 The fluid inside the axon contains a low concentration of \(\mathrm{Ca}^{+2}\), a high concentration of \(\mathrm{Na}^{+}\)
3 The fluid outside the axon contains a low concentration of \(\mathrm{K}^{+}\), a high concentration of \(\mathrm{Na}^{+}\)
4 The fluid outside the axon contains a low concentration of \(\mathrm{Na}^{+}\), a high concentration of \(\mathrm{K}^{+}\)
BIOXI21: NEURAL CONTROL AND COORDINATION

340517 Statement A :
At resting, the axonal membrane is comparatively more permeable to potassium ions and nearly impermeable to sodium ions.
Statement B :
The ionic gradients across the resting membrane are maintained by the active transport of ions by sodium-potassium pump which transports 2 sodium ions outwards for potassium ions into the cell.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
BIOXI21: NEURAL CONTROL AND COORDINATION

340518 Durig the propagation of a nerve impulse, the action potential results due to

1 Rapid influx of \(\mathrm{Na}^{+2}\)
2 Rapid influx of \(\mathrm{Na}^{+}\)
3 Rapid influx of \(\mathrm{K}^{+}\)
4 Rapid influx of \(\mathrm{K}^{+2}\)
NEET DIGITAL LIBRARY
BIOXI21: NEURAL CONTROL AND COORDINATION

340514 The correct sequence for depolarization and return of polarization is(A) Stimulus applied at a site on polarized membrane(B) Increased \(\mathrm{Na}^{+}\)entry into the cell(C) Increase \(\mathrm{K}^{+}\)entry out of the cell(D) Generation of action potential(E) Return of membrane potential

1 \(\mathrm{A} \rightarrow \mathrm{B} \rightarrow \mathrm{D} \rightarrow \mathrm{C} \rightarrow \mathrm{E}\)
2 \(\mathrm{B} \rightarrow \mathrm{A} \rightarrow \mathrm{C} \rightarrow \mathrm{D} \rightarrow \mathrm{E}\)
3 \(\mathrm{A} \rightarrow \mathrm{D} \rightarrow \mathrm{C} \rightarrow \mathrm{B} \rightarrow \mathrm{E}\)
4 \(\mathrm{A} \rightarrow \mathrm{B} \rightarrow \mathrm{C} \rightarrow \mathrm{D} \rightarrow \mathrm{E}\)
BIOXI21: NEURAL CONTROL AND COORDINATION

340515 Potential difference across resting membrane is negatively charged. This is due to differential distribution of the following ions

1 \(\mathrm{Na}^{+}\)and \(\mathrm{K}^{+}\)ions
2 \({\rm{CO}}_3^{ +  + }\) and \(\mathrm{Cl}^{-}\)ions
3 \(\mathrm{Ca}^{++}\)and \(\mathrm{Mg}^{++}\)ions
4 \(\mathrm{Ca}^{++}\) and \(\mathrm{Cl}^{-}\)ions
NCERT Exemplar
BIOXI21: NEURAL CONTROL AND COORDINATION

340516 In the resting stage of a neuron, concentration gradient generates due to the

1 The fluid inside the axon contains a low concentration of \(\mathrm{K}^{+}\), a high concentration of \(\mathrm{Na}^{+}\)
2 The fluid inside the axon contains a low concentration of \(\mathrm{Ca}^{+2}\), a high concentration of \(\mathrm{Na}^{+}\)
3 The fluid outside the axon contains a low concentration of \(\mathrm{K}^{+}\), a high concentration of \(\mathrm{Na}^{+}\)
4 The fluid outside the axon contains a low concentration of \(\mathrm{Na}^{+}\), a high concentration of \(\mathrm{K}^{+}\)
BIOXI21: NEURAL CONTROL AND COORDINATION

340517 Statement A :
At resting, the axonal membrane is comparatively more permeable to potassium ions and nearly impermeable to sodium ions.
Statement B :
The ionic gradients across the resting membrane are maintained by the active transport of ions by sodium-potassium pump which transports 2 sodium ions outwards for potassium ions into the cell.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
BIOXI21: NEURAL CONTROL AND COORDINATION

340518 Durig the propagation of a nerve impulse, the action potential results due to

1 Rapid influx of \(\mathrm{Na}^{+2}\)
2 Rapid influx of \(\mathrm{Na}^{+}\)
3 Rapid influx of \(\mathrm{K}^{+}\)
4 Rapid influx of \(\mathrm{K}^{+2}\)