2.81 Phototropism

• The word phototropism means light growth, suggesting that the growth is towards the light.
• The light comes in all directions meaning that the light will grow forward. 
• If light comes into the plant sideways that means that the plant will grow in the direction the light is coming in. 
• The light on one side causes the plant to move to the opposite side. 
• Auxin causes more growth to the plant which makes the plant grow in the other direction an also causes the plant to bend. 
• Cell division is called mitosis which means that the cells multiply.