Question

The movement of sunflower in accordance with the path of the sun is due to 

(a) phototropism 

(b) geotropism 

(c) chemotropism 

(d) hydrotropism

Answer 1

The answer is (a) phototropism

• The movement of shoot towards light is called phototropism. 
• Plant growth in response to gravitational force is called as geotropism .
• Growth of plant in response to chemical stimulus is called chemotropism. 
• Growth of plant roots towards or away from moisture is called hydrotropism.