Hormone And Plant Growth Flashcards
In what direction do roots grow?
Towards gravity
In what direction do shoots grow?
Towards light
What is an auxin?
Hormone that controls response of roots and shoots
What do auxins do?
Make the shoot grow
Where are auxins found?
In the tip of a shoot
What effect does the sun have on auxins?
Destroys auxins on the same side as light
Where are the auxins once the light has destroyed them?
On the shaded side
What happens to the shoot when there’s only auxins on the shade side?
Shoot grows only on the shaded side towards the light
What is it called when a shoot grows towards the light?
Positive phototropism
What happens to the roots when the light shines on them?
The top half of the auxins are destroyed
What happens to the auxins in the roots because of gravity?
Gravity distributes the auxins to the lower side
What happens after the auxins are on the lower side?
Shoot grows towards light
Roots grow towards gravity
What do auxins do the roots?
Auxins inhibit root growth
