Flashcards in Plant hormones - shoots Deck (11)
What do hormones make sure plants do?
Grow in useful directions
What is the plant growth hormone called?
Where does auxin control growth? (2 places)
Near the tips of SHOOTS and ROOTS
What are the 3 things auxin responds to when controlling the plant's growth?
1. Phototropism (LIGHT)
2. Gravitropism or geotropism (GRAVITY)
(think: what are the 'tropes' of the controlling powers?)
Why does auxin move backwards in the tips?
To stimulate the cell elongation process
Where does the cell elongation process occur?
Just behind the tips (of the shoots or roots)
What happens if the tip of a shoot is removed?
No auxin is available and the shoot may STOP growing
How does auxin affect a plant's shoots?
It promotes growth there
Do shoots grow towards or away from light?
When a shoot is exposed to light does more auxin accumulate on the side that's:
a) in the shade?
b) in the light?
a) iIn the SHADE