1. Where does the chemical reactions take place in neuron?
a) dendrites
b) axon
c) synapses
d) nucleus
Explanation: It is a simple biological fact.
2. Function of dendrites is?
a) receptors
b) transmitter
c) both receptor & transmitter
d) none of the mentioned
Explanation: Dendrites are tree like projections whose function is only to receive impulse.
3. What is purpose of Axon?
a) receptors
b) transmitter
c) transmission
d) none of the mentioned
Explanation: Axon is the body of neuron & thus cant be at ends of it so cant receive & transmit signals
4. The cell body of neuron can be analogous to what mathamatical operation?
a) summing
b) differentiator
c) integrator
d) none of the mentioned
Explanation: Because adding of potential(due to neural fluid) at different parts of neuron is the reason of its firing
5. What is the critical threshold voltage value at which neuron get fired?
a) 30mv
b) 20mv
c) 25mv
d) 10mv
Explanation: This critical is founded by series of experiments conducted by neural scientist
6. Does there is any effect on particular neuron which got repeatedly fired ?
a) yes
b) no
Explanation: The strength of neuron to fire in future increases
7. What is name of above mechanism?
a) hebb rule learning
b) error correction learning
c) memory based learning
d) none of the mentioned
Explanation: It follows from basic definition of hebb rule learning.
8. What is hebb’s rule of learning
a) the system learns from its past mistakes
b) the system recalls previous reference inputs & respective ideal outputs
c) the strength of neural connection get modified accordingly
d) none of the mentioned
Explanation: The strength of neuron to fire in future increases, if it is fired repeatedly.
9. Are all neuron in brain are of same type?
a) yes
b) no
Explanation: Follows from the fact no two body cells are exactly similar in human body, even if they belong to same class
10. What is estimate number of neurons in human cortex?
a) 108
b) 105
c) 1011
d) 1020
Explanation: It is a fact !