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Biology 10 Chapte 12 - Coordination and Control - 4
1.
The membrane coated with.................... does not conduct nerve impulses?
a) All of the above
b) Nodes of ranvier
c) Myelin sheath
d) Schwann layer
2.
When a membrane is coated with myelin sheath, how do impulses travel?
a) Do not travel
b) Go straight the axons
c) Jump from node to node
d) None of these
3.
What are the impulses called that go from node to node?
a) Saltatory impulses
b) Stationary impulses
c) Sensory impulses
d) Ordinary impulses
4.
What is the effect of saltatory impulses on the speed of nerve impulse?
a) Do not affects the speed
b) None of the above
c) Decreases the speed
d) Increases the speed
5.
Regeneration of broken nerve cells is promoted by a..........?
a) Protein
b) Lipid
c) Fat
d) Carbohydrate
6.
What is the protein called that promotes the regeneration of broken nerve cells?
a) None of these
b) Nerve-growth-factor
c) Impulse-growth-factor
d) Stem cell-growth factor
7.
The degenerating brain cells could be repaired by using.............?
a) All of these
b) Nerve cells
c) Impulses
d) Embryonic stem cell
8.
Into how many types, neurons are divided?
a) Four
b) Five
c) None of these
d) Six
9.
Neurons are divided into three types according to their......?
a) Physical appearance
b) Chemical nature
c) Properties
d) Functions
10.
Which of the following information sensory neurons conduct?
a) Complex information
b) Sensory information
c) Multi-information
d) All of these
11.
Sensory neurons conduct impulses from receptors towards.............?
a) All of these
b) Spinal cord
c) Brain
d) CNS
12.
How many dendrites sensory neurons have?
a) Four
b) One
c) Two
d) Three
13.
How many axons sensory neurons have?
a) Three
b) One
c) Two
d) Four
14.
Inter neurons form......................?
a) Ganglion
b) Brain
c) Spinal cord
d) Both b and d
15.
Which of the following neuron receives information from sensory neurons?
a) Modal neuron
b) None of the above
c) Inter neurons
d) Motor neurons
16.
Which of the following neuron stimulates motor neurons?
a) Sensory neurons
b) All of the above
c) Inter neurons
d) Modal neuron
17.
How many dendrites inter neurons have?
a) Four
b) Many
c) Two
d) Three
18.
How many axons inter neurons have?
a) Four
b) Many
c) Two
d) Three
19.
Motor neurons carry information from.................. to effectors?
a) Spinal cord
b) All of these
c) Inter neurons
d) Brain
20.
How many dendrites motor neurons have?
a) Three
b) Two
c) Many
d) Four
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