HARD
Earn 100

Give a reason for following.

Nerve cells are long and branched.

Important Questions on Tissues

EASY

Copy and identify the type of neuron given below :

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MEDIUM
Write names of parts of the human brain and one function of each part.
EASY
_____ gland present in our brain that controls hormonal secretions of several other glands in our body.
MEDIUM
Why is the use of iodised salt advisable?
MEDIUM
Explain the Haversian system of bone tissue.
MEDIUM
Explain the structure of cartilage tissue.
MEDIUM
The pituitary gland is called master gland, why?
MEDIUM

From the diagram given below name the parts A and B. Also, write the function of Part A and Part B. 

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EASY
Nissl's granules of neuron contain _______.
EASY
What are neurons? Where are they found? What function do they perform in the body of an organism?
EASY
Comment: "Neurons transmit messages in the form of nerve impulses."
MEDIUM
Describe the structure of a neuron with the help of a well-labelled diagram.
MEDIUM
Structure of a nerve cell does not contain one of the following:
EASY
 What are nerve impulses?
MEDIUM

What is a nerve impulse? Which structure in a neuron helps to conduct a nerve impulse?

(i) Towards the cell body.

(ii) Away from the body.

MEDIUM
Describe the structure of a neuron with the help of a well labelled diagram.
MEDIUM

Match the contents of columns I, II, III (Double matching).

Column I Column II Column III
(a) Neuron. (i) Absorption. (p) Anchoring of muscle.
(b) Bones. (ii) Axons. (q) Flexibility.
(c) Columnar epithelium.  (iii) Strength. (r) Dendrites.
(d) Collenchyma. (iv) Body framework. (s) Secretion.
MEDIUM
What are the three main parts of a neuron?
MEDIUM
Explain the structure of neuron with the help of a labelled diagram.
EASY

Electrical impulses are an excellent means of quick transfer of information in animals but there are limitations to the use of electrical impulses. List such two limitations.