Plant Responses (OCR A-Level Biology A): Flashcards
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Alternative name for plant hormones
Alternative name for plant hormones
Plant growth regulators
Tropisms
Tropisms
Directional growth responses
Group of hormones that IAA belongs to
Group of hormones that IAA belongs to
Auxins
Proteins activated by IAA in cell walls
Proteins activated by IAA in cell walls
Expansins
% auxin on dark side vs light side in phototropism
% auxin on dark side vs light side in phototropism
75% dark side, 25% light side
Apical dominance
Apical dominance
Auxins from apex inhibit lateral bud development
Three main functions of gibberellins
Three main functions of gibberellins
Seed germination, stem elongation, flowering
Synergism
Synergism
Combined effect exceeds sum of individual effects
Function of abscisic acid (ABA)
Function of abscisic acid (ABA)
Regulates stomatal closure
Parthenocarpic fruits
Parthenocarpic fruits
Fruits formed without fertilisation