Question

Give example of negative chemotropism in plant with explanation.

Answer 1

When the growth of the organism or its parts is navigated by some chemical stimulus from outside it is called chemo-tropism. If it grows towards the stimulus, it is called positive chemo-tropism and if the growth is away from the stimulus it is termed as negative chemo-tropism. 

The roots display negative chemo-tropism when they grow away from the harmful acids. If they grow towards useful minerals they display positive chemo-tropism. 

Answer 2

HEY MATE HERE IS YOUR ANSWER ♥️

CHEMOTROPISM ( chemical) :

The movement of a plant parts in response to chemical is known as CHEMOTROPISM.

If plant part move towards chemical so it shows + ve CHEMOTROPISM.

If the plant part move away from chemical then it shows - ve CHEMOTROPISM.

EXAMPLE : The growth of pollen tube towards ovule during fertilisation in flower shows positive CHEMOTROPISM.

Plant roots show negative CHEMOTROPISM as they move away from harmful ACIDS.

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