What Is a Neuron

Q. Which part of a neuron is associated with receptors of the body or is sometimes referred to as receptive zone of neuron?

1. Axon
2. Cyton
3. Dendrites
4. Myelin sheath

Q.

Brain receives and sends the signals in the form of

1. Electrical signals

2. Chemical signals

3. Thermal signals

4. Mechanical signals

Q. Assertion :Transmission of nerve impulse across a synapse is accomplished by neurotransmitters. Reason: Transmission across a synapse usually requires neurotransmitters, because there is a small space, i.e., synaptic cleft, that separates one neuron from another.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
3. Assertion is correct but Reason is incorrect.
4. Both Assertion and Reason are incorrect.

Q. from where do neurons produce the electricity for electric impulses

Q. "Nodes of Ranvier" are found in

1. Brain
2. Heart
3. Axon
4. Eye

Q. The nature of nerve impulse is?

1. Chemical
2. Magnetic
3. Electrochemical
4. Electromagnetic

Q.

Identify the part of the neuron which receives electrical impulse first.

1. Axon

2. Cyton

3. Dendrites

4. Myelin sheath

Q. Match the following:

1. Animal-made of cells
2. Plant-made of cells
3. Discovered cell
4. Invented microscope

Q. Arrange the following discoveries regarding cell in the chronological order from oldest to latest.

1. Nucleus
2. Protoplasm
3. Cell theory
4. Microscope
5. Cell from cork