Question 4
In a neuron, conversion of electrical signal to a chemical signal occurs at/in

(a) cell body
(b) axonal end
(c) dendritic end
(d) axon

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Solution

(b) axonal end

In a chemical synapse at the end of the axon, the electrical impulse sets off the release of some chemicals called neurotransmitters (chemical signal). These chemicals cross the gap, or synapse, and start a similar electrical impulse in the dendrite of the next neuron.

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Question 3
In a synapse, chemical signal is transmitted from

(a) dendritic end of one neuron to axonal end of another neuron
(b) axon to the cell body of the same neuron
(c) cell body to the axonal end of the same neuron
(d) axonal end of one neuron to dendritic end of another neuron

Question 2
Electrical impulse travels in a neuron from

(a) Dendrite → axon → axonal end → cell body
(b) Cell body → dendrite → axon → axonal end
(c) Dendrite → cell body → axon → axonal end
(d) Axonal end → axon → cell body → dendrite

Question 2
Electrical impulse travels in a neuron from

(a) Dendrite → axon → axonal end → cell body
(b) Cell body → dendrite → axon → axonal end
(c) Dendrite → cell body → axon → axonal end
(d) Axonal end → axon → cell body → dendrite

Question 53
Why is the flow of signals in a synapse from the axonal end of one neuron to dendritic end of another neuron but not the reverse?

Q. Question 21
Which of the following statements about transmission of nerve impulse is incorrect?

(a) Nerve impulse travels from dendritic end towards axonal end.
(b) At the dendritic end electrical impulses bring about the release of some chemicals which generate an electrical impulse at the axonal end of another neuron.
(c) The chemicals released from the axonal end of one neuron cross the synapse and generate a similar electrical impulse in a dendrite of another neuron.
(d) A neuron transmits electrical impulses not only to another neuron but also to muscle and gland cells.

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Neurons

Standard IX Biology

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Question 4 In a neuron, conversion of electrical signal to a chemical signal occurs at/in (a) cell body (b) axonal end (c) dendritic end (d) axon

(b) axonal end In a chemical synapse at the end of the axon, the electrical impulse sets off the release of some chemicals called neurotransmitters (chemical signal). These chemicals cross the gap, or synapse, and start a similar electrical impulse in the dendrite of the next neuron.

Question 4
In a neuron, conversion of electrical signal to a chemical signal occurs at/in

(a) cell body
(b) axonal end
(c) dendritic end
(d) axon

(b) axonal end

In a chemical synapse at the end of the axon, the electrical impulse sets off the release of some chemicals called neurotransmitters (chemical signal). These chemicals cross the gap, or synapse, and start a similar electrical impulse in the dendrite of the next neuron.