Question

The non-directional movement of a plant part in response to temperature
is called ________.
a) thermotropism
b) Thermonasty
c) chemotropism
d) thigmonasty

Answer 1

"$\textbf{a}$"

The non directional movement of a plant part in response to temperature is called thermotropism.

Answer 2

Dear Student,

◆ Answer -

The non-directional movement of a plant part in response to temperature is called thermonasty.

● Thermonasty -

• Movement of plant parts in random direction as response to change in temperature is called thermonasty.

# For example -

• With rise in temperature during day, tulip flowers will open up.
• With decrease in temperature at night, flowers of tulip close.

Thanks dear. Hope this helps you...