Question

What is chemotropism???????

Answer 1

$\huge\red{\boxed{\bold{Answer}}}$

$\huge\underline\mathfrak\green{Chemotropism}:$

• The growth or movement of a plant or plant part in response to a chemical stimulus.

• For ex: The growth of a pollen tube down the style during fertilization in response to the presence of sugars in the style.

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Answer 2

$\huge\underline\red{\sf Tropism:-}$

✴A growth movement of a plant part in response to an external stimulus in which an stimulus determines the direction of response is called Tropism.

✴If the growth is towards stimulus then it is positive tropism.

✴If the growth is against tropism then it is negative tropism.

$\huge\underline\red{\sf Types:-}$

✴Phototropism.

✴Chemotropism.

✴Geotropism.

✴Hydrotropism.

✴Thigmotropism.

$\huge\underline\red{\sf Chemotropism:-}$

✴The growth of plant part due to chemical stimulus is called Chemotropism.

✴The growth of a pollen tube towards the ovule induced by a sugary substance as stimulus is an example of this tropism.

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