Q2 of 36 Page 261

Give example of the movement of a plant part which is caused by the loss of water.

Thermometry. The movement is caused due the loss of water in in the pulvinus part of the leaf. When we touch the leaves of the ‘mimosa’ plant, they fold up in response to the touch.


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2

Name the plant which shows thigmonesty.

 2

Give the scientific terms used to represent the following:

A. Bending of a shoot towards light.


B. Growing of roots towards the earth.


C. Growing of a pollen tube towards ovule.


D. Bending of roots towards water.


E. Winding of tendril around a support.

 2

Name the two systems of control and co-ordination in higher animals.

 2

Name the three components of a nerve cell.