2.80 Geotropism

• Geo of Geotropism stands for gravity and tropism stands for growth response. 
• The embryonic roots grown downwards and it's called positive geotropism. 
• Where the embryonic roots grow upwards it is negative geotropism. 
• Plants commonly exist in a state of "anisotropic growth," where roots grow downward and shoots grow upward. 
• No matter what you do to a plant within Earth's atmosphere, it will still grow roots down, stem up.