Q13 of 40 Page 40

Paheli accidentally placed her hand over a flame and immediately pulled it back. She felt the sensation of heat and reacted due to the action of

Paheli accidentally placed her hand over a flame and immediately pulled it back. She felt the sensation of heat and reacted due to the action of nerve cells. Our nervous system is responsible for all these purposes. The nerve cells are long branched structures which receive and transmit information.

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11

The unit of measurement used for expressing the dimension (size) of cells is:

 12

The most important function of the cell membrane is that it:

 14

Of the following parts of a cell listed below, name the part that is common to plant cell, animal cell, and a bacterial cell.

 15

The thread-like structures present in the nucleus are