Plant hormones Flashcards
1
Q
What is photropism?
A
Sensetivity to light
2
Q
What is geotropism?
A
Sensetivity to gravity
3
Q
What is the role of the auxin hormone?
A
Controls tropic responses
4
Q
What is elongate?
A
When the auxin makes the cells grow longer
5
Q
Where do the roots grow on a plant?
A
Where there is the least auxin and grows downwards, pulled by gravity
6
Q
Where does shoots grow on a plant?
A
Where there is the most auxin and will grow upwards away from the force of gravity
7
Q
What are auxins used for?
A
Weed killing, making rooting powders, promote tissue growth
8
Q
What is the role of a giberellin?
A
They initiate seed germination
9
Q
What does the giberellin do?
A
End seed dormancy, promote flowering throughout the year, increase fruit size
