Question

The tendrils of pea plants appear to move in a particular direction as they grow.

How is this response caused? ​

Answer 1

Answer:

Thigmotropism in a redvine: Tendrils of a redvine produce auxin in response to touching a support stick and then transfer the auxin to non-touching cells. The non-touching cells elongate faster to curl around the support stick. A thigmonastic response is a touch response independent of the direction of stimulus.

Answer 2

Answer:

Thigmotropism in a redvine: Tendrils of a redvine produce auxin in response to touching a support stick and then transfer the auxin to non-touching cells. The non-touching cells elongate faster to curl around the support stick