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Chapter 17 - Coordination and Control - 1
1.
If plants are grown without light, they become extremely long and fail to form chlorophyll. They are said to be:
a) Chlorotic
b) Galls
c) Etiolated
d) Callus
2.
Which of the following is not a function of auxins:
a) Promote stomatal opening
b) Promote apical dominance and fruit growth.
c) Promote cell division in cambium.
d) Cause delay in leaf scensecene.
3.
Nociceptors produce the sensation of:
a) Pain
b) Light
c) Taste
d) Hearing
4.
Receptors of the following senses are present in the skin:
a) Heat, cold & pain
b) Touch, pressure, cold, heat & pain
c) Touch & pressure
d) Touch, pressure & Pain
5.
The cytoplasmic processes conducting impulses away from cell body of neuron are termed as:
a) Axon
b) Dendrites
c) Synapse
d) Myelin
6.
Which of the following ions present in the nerve cells and surrounding fluid are the most important in conduction of nerve impulse
a) Mg
++
and Ca
++
b) K
+
and Mg
++
c) Na
+
and Mg
++
d) Na
+
and K
+M
7.
Which of the following is an example of neurotransmitter:
a) Dopamin
b) Acetylcholine
c) Serotonin
d) All of the above
8.
In human, forebrain is further divided into:
a) Cerebrum & limbic system
b) Thalamus & cerebrum
c) Thalamus & limbic system
d) Cerebrum, limbic system & thalamus
9.
In humans, amygdala, hippocampus & nearby region of cerebrum:
a) Thalamus, amygdala, hippocampus & nearby region of cerebrum
b) Thalamus, hypothalamus & amygdala.
c) Thalamus, amygdala, hippocampus & nearby region of carebrum
d) Thalamus, hypothalamus & hippocampus
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