Question

The movement of plant organs in response to force of gravity is called:

• A. Phototropism
• B. Thigmotropism
• C. Geotropism
• D. Chemotropism

Answer 1

Answer: (C)

Geotropism

• The movement of plant parts in response to contact with a solid touch is called thigmotropism.
• The movement of plant parts in response to light is called phototropism.
• The movement of plant parts in response to the gravitational pull is called geotropism.
• The movement of plant parts in response to an external chemical stimulus is called chemotropism.

So, the correct answer is option C.