At Resting condition, the neuron membrane is

  1. Negative from outside
  2. Negative from inside
  3. Positive from inside
  4. Both A and C
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The………. Difference across the resting membrane is called as Resting potential.

  1. Electrochemical potential
  2. Elecrical potential
  3. Chemical
  4. Chemiosmotic
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When a stimulus is applied at a site over neuron membrane

  1. It becomes freely permeable to Sodium ions
  2. It becomes freely permeable to potassium ions
  3. It causes reversal of polarity from positive to negative on inner side
  4. Both A and C
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The polarity of the membrane at site A is reversed ie inside of the membrane becomes changed from negative to positive

  1. Called as depolarization
  2. Called as repolarization
  3. Called as polarization
  4. Called as hyperpolarization
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The……….. at the site A over neuron is ……..Or it termed as ……

  1. Resting membrane potential, active potential, nerve impulse
  2. Electric potential difference, Action potential, Nerve impulse
  3. Resting membrane potential, nerve impulse, action potential
  4. Action potential, electric potential difference, active potential
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In a neuron if stimulus is given at point A then in which direction current flows?

  1. From site A to site B on innerside
  2. From site A to site B on outerside
  3. From site B to site A on innerside
  4. Both A and B
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In a neuron if stimulus is given at point A then in which direction current flows?

  1. From site A to site B on innerside
  2. From site A to site B on outerside
  3. From site B to site A on outerside
  4. Both A and C
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The rise in stimulus-induced permeability to
a. Potassium ions
b. Sodium ions
c. Restoring RMP
d. Diffusion of potassium ions

Arrange them in order.

  1. b-a-c-d
  2. a-b-c-d
  3. b-a-d-c
  4. c-a-d-b
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Nerve impulse is transmitted from one neuron to another neuron by the means of

  1. Synapse
  2. Junction
  3. Both A and B
  4. Current only
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Which of the following has not to be there in a synapse?

  1. Pre synaptic neuron
  2. Post synaptic neuron
  3. Synaptic cleft
  4. None of these
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