Question

what is chemotropism ??​

Answer 1

Define chemotropism.

A directional movement due to Chemical change.

Ex: Pollen tube toward 0vule.

The growth of pollen tube towards ovule induced by chemical (stigmatic fluid).

Pollen tube grow down the style due to chemical substance produced by ovule during fertilisation.

Positive: Towards stimulus.

Negative: Away from stimulus.

Answer 2

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