Neural Network Questions and Answers – Characteristics – 2

This set of Neural Networks Multiple Choice Questions & Answers (MCQs) focuses on “Characteristics – 2”.

1. What is approx size of neuron body(in micrometer)?
a) below 5
b) 5-10
c) 10-80
d) above 100
View Answer

Answer: c
Explanation: Average size of neuron body lies in the above limit.

2. What is the gap at synapses(in nanometer)?
a) 50
b) 100
c) 150
d) 200
View Answer

Answer: d
Explanation: It is near to 200nm.

3. What is charge at protoplasm in state of inactivity?
a) positive
b) negative
c) neutral
d) may be positive or negative
View Answer

Answer: b
Explanation: It is due to the presence of potassium ion on outer surface in neural fluid.
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4. What is the main constituent of neural liquid?
a) sodium
b) potassium
c) Iron
d) none of the mentioned
View Answer

Answer: a
Explanation: Potassium is the main constituent of neural liquid & responsible for potential on neuron body.

5. What is average potential of neural liquid in inactive state?
a) +70mv
b) +35mv
c) -35mv
d) -70mv
View Answer

Answer: d
Explanation: It is a basic fact, founded out by series of experiments conducted by neural scientist.
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6. At what potential does cell membrane looses it impermeability against Na+ ions?
a) -50mv
b) -35mv
c) -60mv
d) -65mv
View Answer

Answer: c
Explanation: Cell membrane looses it impermeability against Na+ ions at -60mv.

7. What is effect on neuron as a whole when its potential get raised to -60mv?
a) it get fired
b) no effect
c) it get compressed
d) it expands
View Answer

Answer: a
Explanation: Cell membrane looses it impermeability against Na+ ions at -60mv.

8. The membrane which allows neural liquid to flow will?
a) never be imperturbable to neural liquid
b) regenerate & retain its original capacity
c) only the certain part get affected, while rest becomes imperturbable again
d) none of the mentioned
View Answer

Answer: b
Explanation: Each cell of human body(internal) has regenerative capacity.

9. How fast is propagation of discharge signal in cells of human brain?
a) less than 0.1m/s
b) 0.5-2m/s
c) 2-5m/s
d) 5-10m/s
View Answer

Answer: b
Explanation: The process is very fast but comparable to the length of neuron.
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10. What is the function of neurotransmitter ?
a) they transmit data directly at synapse to other neuron
b) they modify conductance of post synaptic membrane for certain ions
c) cause polarisation or depolarisation
d) both polarisation & modify conductance of membrane
View Answer

Answer: d
Explanation: Excitatory & inhibilatory activities are result of these two process.

Sanfoundry Global Education & Learning Series – Neural Networks.

To practice all areas of Neural Networks, here is complete set on 1000+ Multiple Choice Questions and Answers.

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