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Biology 10 Chapte 12 - Coordination and Control - 3
1.
Of how many components, the nervous system of man is composed?
a) Two
b) Five
c) Three
d) Four
2.
Of how many components, the nervous system in higher animals is composed?
a) Four
b) Three
c) Five
d) Two
3.
What is coordinator in central nervous system?
a) None of these
b) All of these
c) Brain
d) Spinal cord
4.
Which out of the following system consists of nerves as coordinator?
a) Autonomic nervous system
b) All of these
c) Somatic nervous system
d) Peripheral nervous system
5.
Nerves are made up of............?
a) Neurons
b) Protons
c) Photons
d) Ganglion
6.
Which of the following is the unit of nervous system?
a) Neuron
b) Nerves
c) Protons
d) Photons
7.
Which of the following are specialized cells that conduct nerve impulses from receptors to coordinators?
a) Ganglion
b) Nerves
c) Neuron
d) Protons
8.
To which of the following component, neurons conduct impulses from receptors?
a) Effectors
b) Coordinators
c) Stimulus
d) All of these
9.
Which of the following is the component that communicates with each other and with other types of cells?
a) Stimulus
b) Coordinators
c) Effectors
d) Neurons
10.
Which of the following component is present in the cell body of the neuron?
a) None of the above
b) Nucleus
c) Schwann cells
d) Nodes of ranvier
11.
The processes that extend out from cell body are called........?
a) Both b and c
b) Axons
c) Nodes of ranvier
d) Dendrites
12.
Which of the following conducts impulses towards cell body?
a) Dendrites
b) Myelin sheath
c) Axons
d) All of these
13.
Which of the following conducts impulses away from cell body?
a) Myelin sheath
b) Dendrites
c) None of these
d) Axons
14.
A nerve impulse is a wave of .................. changes?
a) Mechanical
b) Electrical
c) Electrochemical
d) Magnetic
15.
Which out of the following are special neuroglial cells that are located at regular intervals along axons?
a) Nodes of ranvier
b) Schwann cells
c) Axons
d) Dendrites
16.
Which of the following cells secrete a fatty layer over axons?
a) Axons
b) Nodes of ranvier
c) Schwann cells
d) Dendrites
17.
What is the layer called that is secreted by schwann cells?
a) Nodes of ranvier
b) None of the above
c) Myelin sheath
d) Schwann layer
18.
What is the nature of the layer that is secreted by schwann cells?
a) Juicy
b) All of the above
c) Salty
d) Fatty
19.
Between the areas of myelin on an axon, what are the non-myelinated points called?
a) Nodes of ranvier
b) Dendrites
c) Schwann cells
d) Axons
20.
Myelin sheath is a/an..................?
a) Insulator
b) Metalloid
c) Conductor
d) None of these
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