Flashcards in Plant hormones - shoots Deck (11)
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1
What do hormones make sure plants do?
Grow in useful directions
2
What is the plant growth hormone called?
Auxin
3
Where does auxin control growth? (2 places)
Near the tips of SHOOTS and ROOTS
4
What are the 3 things auxin responds to when controlling the plant's growth?
1. Phototropism (LIGHT)
2. Gravitropism or geotropism (GRAVITY)
3. Moisture
(think: what are the 'tropes' of the controlling powers?)
5
Why does auxin move backwards in the tips?
To stimulate the cell elongation process
6
Where does the cell elongation process occur?
Just behind the tips (of the shoots or roots)
7
What happens if the tip of a shoot is removed?
No auxin is available and the shoot may STOP growing
8
How does auxin affect a plant's shoots?
It promotes growth there
9
Do shoots grow towards or away from light?
Towards
10
When a shoot is exposed to light does more auxin accumulate on the side that's:
a) in the shade?
or
b) in the light?
a) iIn the SHADE
11
