B11.9/ B11.10 Flashcards
(8 cards)
1
Q
what is gravitropism?
A
this is the growth response of a plant to gravity
2
Q
What are auxins?
A
auxins are hormones released by plants
3
Q
where are auxins released from?
A
tips of the shoots and roots
4
Q
What does auxin do in shoots?
A
stimulate growth
5
Q
what does auxin do in roots?
A
slows down the growth
6
Q
What are gibberellins used for in plants?
A
important in seed germination as it triggers breakdown of food stored in seeds
7
Q
How do we use auxins?
A
as a rooting powder, as a selective weed killer and tissue culture
8
Q
how do we use gibberellins?
A
brewing, promotes flowering and to increase fruit size
