Q. No.At Resting condition, the neuron membrane is
(1) Negative from outside
(2) Negative from inside
(3) Positive from inside
(4) Both A and C
(1) Negative from outside
(2) Negative from inside
(3) Positive from inside
(4) Both A and C
The………. difference across the resting membrane is called as Resting potential.
(1) Electrochemical potential
(2) Electrical potential
(3) Chemical
(4) Chemiosmotic
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
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
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
Nerve impulse is transmitted from one neuron to another neuron by the means of
1. Synapse
2. Junction
3. Both 1 and 2
4. Current only
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
Which of the following is not associated with electrical synapse?
(1) No synaptic cleft
(2) Pre synaptic membranes and post synaptic membranes are in close association with each other
(3) Electric current flow directly from one neuron to other neuron through synapse
(4) Very common synapse in our system
Which of the following is not associated with Impulse transmission across an electrical synapse?
(1) Faster than chemical synapse
(2) Rare in our system
(3) No synaptic cleft
(4) Impulse transmission is not similar as that of transmission within a neuron
Synaptic cleft is not
(1) Separated by pre synaptic and post synaptic neurons
(2) a fluid filled space
(3) A part of synapse
(4) Present in all synapses
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