Topic 2 Plants: Plant Hormones Flashcards
1
Q
- Gas that increases fruit ripening
A
Ethylene
2
Q
- Cause cell growth
- Work with cytokinins
- Responsible for plant tropisms (growth in certain directions)
- Auxin concentrated on one side of a stem leads to asymmetric growth
A
Auxins
3
Q
a. Phototropism
b. Gravitropism
c. Thigmotropism
d. Cytokinins
e. Gibberellins
f. Abscisic Acid
A
Types of Auxins
4
Q
- Growth towards light
A
Phototropism
5
Q
- Growth away from pull of gravity
A
Gravitropism
6
Q
- Growth in response to contact (e.g. vine growing up a wall)
A
Thigmotropism
7
Q
- Regulate cell differentiation and division with auxins
- Can prevent aging
A
Cytokinins
8
Q
- Responsible for stem and shoot elongation, elimination for dormancy of a seed., flowering, fruit production, lead and fruit death
A
Gibberellins
9
Q
- Functions during stress
- Promotes dormant seeds
- Closes stomata (drought)
- Inhibits growth
A
Abscisic Acid
