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Leaf Structure: Arrangement and Venation

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Question

Give the scientific terms used to represent the following :
(d) Bending of roots towards the water.

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Solution

Solution: Hydrotropism
Hydrotropism is the tropic movement towards or away from the water. Roots are positively hydrotropic while stems are negatively hydrotropic.

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Give the scientific terms used to represent the following:

(a) Bending of a shoot towards the light.

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(c) The growth of a pollen tube towards ovule.

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(a) bending of the shoot of a plant in response to light
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Q. A student takes a potted plant growing in a transparent glass jar. This potted plant having straight stem and straight root is kept near the window in a dark room so that sunlight falls on it from the right side (through the window). After some days, it is found that the stem of plant bends towards the right side (from where the light is coming) but the root bends to the left side, away from the light.
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Leaf Structure: Arrangement and Venation

Standard VII Biology

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