Question

Match the following.

• A. Gravity
• B. Touch
• C. Chemical
• D. Light

Answer 1

The movement exhibited by plants in response to a stimulus is called tropic movement. This can either be towards or away from a stimulus.
If the movement is in response to chemicals it is called chemotropism; in response to water, it is called hydrotropism; in response to light, it is called phototropism and in response to touch, it is called thigmotropism.