4.5.4 - Plant hormones: 4.5.4.1 - Control and coordination Flashcards
What is the function of plant hormones?
Plants produce hormones to coordinate and control growth and responses to light and gravity.
What is phototropism?
Phototropism is a plants response to light.
What is gravitropism / geotropism?
Gravitropism / geotropism is a plants response to gravity.
What causes unequal growth rates in plant roots & shoots?
Unequal distributions of auxin cause unequal growth rates in plant roots and shoots.
What is tropism?
Tropism is a plants response to an environmental condition.
What is hydrotropism?
Hydrotropism is a plants response to water.
What is the coleoptile?
The coleoptile is the very tip of the root.
What is unidirectional light?
Unidirectional light is light coming from only one direction.
What is cell elongation?
Cell elongation is when cells get longer.
What is auxin?
Auxin is a plant hormone that regulates growth by stimulating cell elongation in stems.
Where is auxin found?
Auxin is found at the tips of growing stems and roots.
