Q1 of 86 Page 151

The solar tracking of sunflower in accordance with the path of sun is due to ___________.

Heliotropism


It is the motion of flower in response to the direction of sun. Sunflower follows the path of sun from east to west from dawn to dusk. Then it moves from west to east during night.


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A plant is kept in a dark room for about 24 hours before conducting any experiment on photosynthesis in order to _______.

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Transpiration takes place through _____________.

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The response of a plant part towards gravity is __________.

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When the leaves of a sensitive plant are touched with a finger, they fold up and when light fades at dusk the petals of a Dandelion flower close. These two plants show ____ and_____ movements.