Neurons

Q.

Function of dendrites and Axon

Q.

Study the diagram given below and then answer the questions that follow :

(a) Identify the cell.
(b) Name the parts labeled 1, 2, 3, 4, 5, and 6.
(c) Where is this cell likely to be found in the human body and what is its function?

Q.

Give 3 differences between axon and dendron.

Q.

Muscle cells are branched.

1. True
2. False

Q.

Which of the following is/are (an) example(s) of structural protein?

1. Myosin
2. Collagen
3. Keratin
4. All of these

Q. What is the junction between two nerve cells called?

1. Synapses
2. Dendrites
3. Dendrons
4. Myelin sheath

Q. Which of the following is not a function of glial cells?

1. Protection of neurons from pathogens
2. Insulation of neurons
3. Synthesizing neurotransmitters for neurons
4. Providing nourishment to neurons

Q.

State two characteristics of nerve cells.

Q. The signal that passes along the nerve fibre is known as .

Q.

Name the longest part of neuron?

Q.

Do all cells respond to stimuli? Is this ability possessed by nerve cells only? [1 MARK]

Q. What are glial cells? What are their functions?

Q. Draw a neat and labeled diagram of a neuron. [3 MARKS]

Q.

Which tissue is present in the brain?

Q. Mention if the following statements are true (T) or false (F)
(v) Perikaryon is the nucleus of a nerve cell.

Q.

Is the length of the nueron present in a human body 1 meter!!!!!!

Q.

Name the following :

(a) Neurons which carry impulses towards brain.

(b) Process of neuron which carries impulses away from cyton.

Q.

The role of the axon is to

1. integrate signals from the dendrites

2. release neurotransmitter

3. conduct the action potential to the synaptic terminal

4. synthesize cellular components

Q. (a) Name the cell that make the nervous tissue.

(b) Draw a well labelled diagram.

Q.

Long and unbranched extension of a nueron

Q. which chemical is present in nerves cell?
why we call like the message in our body is travelled like electrical impulses is that in the form of electricity

Q. What are the structural units of nervous system? Explain its structure and functions in detail.

Q. Name the longest animal cell.

Q. is a specialised cell that transmits messages through electrical signals.

1. Red blood cell
2. Nerve cell
3. Muscle cell
4. White blood cell

Q.

Mitochondria are abundant in neurons. Give reason.

Q. The single, long part of the neuron is known as the axon.

1. True
2. False

Q. (a) Why are nerve cells long and have branches?​

Q.

Question 2
What happens at the synapse between two neurons?

Q. Which amongst the following is known as the functional unit of the nervous system?

1. Cyton
2. Dendron
3. Neuron
4. Auxin

Q.

What are sensory neuron and motor neuron?