Tissues

Q. What is the relationship between a cell, a tissue, an organ and an organ system?

Q. Which of the following is an example of a tissue?
(a) heart
(b) blood
(c) lung
(d) eye

Q. What is the significance of tissues in multi-cellular organisms?

1. Tissues are a specialized group of cells.
2. Tissues carry out specific functions very efficiently.
3. Tissues impart the advantage of division of labour.
4. Organisms become more complex and can utilize the environment much better due to tissues.

Q.

Why do different cells have different shapes?

1. Different cell shapes are a part of the evolution in the organism.

2. Cells get modified according to the function they perform.

3. Cells choose random shape for themselves.
4. Cells attain different shapes in response to stress.

Q. Many tissues organise to form an _____.

1. organ
2. organ system
3. organism
4. organelle

Q. The part of the plant which grows under the ground:
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1. root
2. petiole
3. shoot
4. lamina

Q. State whether the given statement is True or False:
The tissues form specialized cells and the cells form an organ.

1. True
2. False

Q.

Group of cells present in our body, similar in structure and organised together to perform a specific activity, is known as __.

Q. Group of one or more type of similar cells with a similar origin and specialised to perform specific function(s) are called ______.

1. organ system
2. tissues
3. organelles
4. organs