Tag: generation of nerve impulse

Questions Related to generation of nerve impulse

Ratio of N$a^+$ and $K^+$ ions across nerve membrane is

  1. 50: 40

  2. 60 : 30

  3. 30 : 10

  4. 10 : 35


Correct Option: D

In an axon, nerve impulse travels

  1. Away from cyton

  2. Towards cyton

  3. Both away and towards cyton

  4. Not known


Correct Option: A

Depolarisation of nerve cell involves

  1. Influx of $K^+$

  2. Influx of N$a^+$

  3. Influx of C$a^{2+}$ and Cl

  4. Efflux of N$a^{2+}$

  5. Efflux of C$a^{2+}$ and Cl


Correct Option: B

In resting stage of neuron, diffusion due to concentration gradient will drive

  1. $K^+$ into cell

  2. $K^+$and N$a^+$ out of cell

  3. N$a^+$ into cell

  4. N$a^+$ out of cell


Correct Option: C

Nerve impulse travels as

  1. Mechanical impulse

  2. Chemical impulse

  3. Electrical impulse

  4. Magnetic impulse


Correct Option: C

At resting stage nerve cell has

  1. Low $K^+$ outside and high N$a^+$ inside

  2. High $K^+$ inside and high N$a^+$ outside

  3. High $K^+$ inside and low N$a^+$ outside

  4. High $K^+$ outside and low N$a^+$ inside


Correct Option: B

Nerve axon takes part in

  1. Receiving impulse

  2. Transformation of energy

  3. Conduction of impulse

  4. Providing energy for impulse transmission


Correct Option: C

A polarised neuron is the one that is

  1. Conducting stimulus

  2. At resting potential

  3. Having action potential

  4. None of the above


Correct Option: B

During conduction of nerve impulse

  1. N$a^+$ moves out of axoplasm

  2. N$a^+$ moves into axoplasm

  3. $K^+$ moves into axoplasm

  4. C$a^{2+}$ moves into axoplasm


Correct Option: B

Transverse nerve fibres found in hind brain represent

  1. Crura cerebri

  2. Pons varolli

  3. Arbor vitae

  4. Choroid plexus


Correct Option: B