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Which of the following granules are present in neuron and their work is to synthesise

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Important Questions on Neural Control and Coordination

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Biology>Human Physiology>Neural Control and Coordination>Neuron-The Structural and Functional Unit of Neural System
Each neuron has a cell body, axon, and dendrites. The dendrites are the protoplasmic extensions of the nerve cell. The axodendritic type of chemical synapse is formed by the association between the axon terminal of the pre-synaptic neuron and the dendrites of a post-synaptic neuron. The action potential causes the fusion of the synaptic vesicle to release the neurotransmitters for neurotransmission. Select the correct option from the following.
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Biology>Human Physiology>Neural Control and Coordination>Neuron-The Structural and Functional Unit of Neural System

Identify A, B, C and D in the following graph regarding nerve impulse transmission.

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Biology>Human Physiology>Neural Control and Coordination>Neuron-The Structural and Functional Unit of Neural System

Assertion (A): Impulse transmission across electrical synapse is always faster than that of chemical synapse.

Reason (R): In electrical synapse, pre and post synaptic membranes are in very close proximity and have links called gap functions.

The correct option among the following is

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Biology>Human Physiology>Neural Control and Coordination>Neuron-The Structural and Functional Unit of Neural System
Which one of the following ion pairs is involved in nerve impulses?
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Biology>Human Physiology>Neural Control and Coordination>Neuron-The Structural and Functional Unit of Neural System
Receptor sites for neurotransmitters are present on
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Biology>Human Physiology>Neural Control and Coordination>Neuron-The Structural and Functional Unit of Neural System
Concentration of Na+ ions outside a nerve cell is ~ 100 times more than inside. The concentration of K+ ions is more inside the cells. The levels of Na+ ions and K+ ions are maintained by:
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Biology>Human Physiology>Neural Control and Coordination>Neuron-The Structural and Functional Unit of Neural System
Action potential in neurons is generated by a rapid influx of
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Biology>Human Physiology>Neural Control and Coordination>Neuron-The Structural and Functional Unit of Neural System
Which one of the following is the correct reflex arc?
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Biology>Human Physiology>Neural Control and Coordination>Neuron-The Structural and Functional Unit of Neural System
Stimulation of a muscle fiber by a motor neuron occurs at:
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Biology>Human Physiology>Neural Control and Coordination>Neuron-The Structural and Functional Unit of Neural System
Nissl bodies are mainly composed of
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Biology>Human Physiology>Neural Control and Coordination>Neuron-The Structural and Functional Unit of Neural System
Which of the following is secreted at the ends of an axon?
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Biology>Human Physiology>Neural Control and Coordination>Neuron-The Structural and Functional Unit of Neural System
Myelin sheath is produced by
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Biology>Human Physiology>Neural Control and Coordination>Neuron-The Structural and Functional Unit of Neural System
Write two differences between axon and dendron.
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Biology>Human Physiology>Neural Control and Coordination>Neuron-The Structural and Functional Unit of Neural System
Select the incorrect statement regarding synapses:
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Biology>Human Physiology>Neural Control and Coordination>Neuron-The Structural and Functional Unit of Neural System
Acetyl choline and adrenaline are neurotransmitters.
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Biology>Human Physiology>Neural Control and Coordination>Neuron-The Structural and Functional Unit of Neural System
Where the Schwann cells are located?
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Biology>Human Physiology>Neural Control and Coordination>Neuron-The Structural and Functional Unit of Neural System

Choose the odd one and write it:

Cerebrum, Hypothalamus, Pons, Thalamus

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Biology>Human Physiology>Neural Control and Coordination>Neuron-The Structural and Functional Unit of Neural System
The transport of which neutrotransmitter is interfered by cocaine?
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Biology>Human Physiology>Neural Control and Coordination>Neuron-The Structural and Functional Unit of Neural System
Answer the following question:
Name different types of neurons and give one function of each.
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Biology>Human Physiology>Neural Control and Coordination>Neuron-The Structural and Functional Unit of Neural System

Assertion (A): In myelinated nerve fibres, action potentials are conducted at a faster rate.

Reason (R): The myelin present between nodes of Ranvier has concentrated Na and K voltage-gated channels.