Question

Match the pairs and explain. 

‘A’	‘B’
1. Growth of pollen tube towards ovule	a. Gravitropic movement
2. Growth of shoot system	b. Chemotropic movement
3. Growth of root system	c. Phototropic movement
4. Growth towards water	d. Growth-irrelevant movement
	e. Hydrotropic movement

Answer 1

‘A’	Answers	Explanation
1. Growth of pollen tube towards ovule	b. Chemotropic movement	Chemotropism refers to the growth of plants navigated by chemical stimulus from outside of the plant.
2. Growth of shoot system	c. Phototropic movement	Phototropism refers to the growth of a plant in response to a light stimulus.
3. Growth of root system	a. Gravitropic movement	Gravitropism refers to the growth of a plant in response to gravity pulling on it.
4. Growth towards water	e. Hydrotropic movement	Hydrotropism refers to the growth of plants in response to the direction determined by a stimulus or gradient in water concentration.