Plant Responses Flashcards
1
Q
Chemical Defences
A
Tannins - taste bitter
Alkaloids (AAs) - taste bitter
Pheromones - behavioural response in an other organism
2
Q
Tropisms
A
Photo - light
Gravi/Geo - gravity
Chemo - chemical
Thigmo - climbing plants
3
Q
Cytokinins
A
Promote cell division
Delay leaf senescence
Overcome apical dominance
Promote cell expansion
4
Q
Absiscic Acid
A
Inhibits seed germination + growth
Causes stomatal closure when plant has low water
5
Q
Auxins (IAA)
A
Promote cell elongation
Inhibit lateral bud growth
Inhibit leaf fall
6
Q
Gibberellins
A
Promote seed germination and stem growth
7
Q
Ethene
A
Promotes fruit ripening
8
Q
Auxin Phototropism Shoots
A
Shaded side, cell elongate on shaded side, plant bends to light
9
Q
Auxin Geotropism Roots
A
Lower side, upper side grows, root bends downwards
