Plant Hormones (AQA GCSE Biology): Flashcards
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Practise the cards
15 cards from this deck
Positive phototropism
Positive phototropism
Growth towards light source
Growth of seedlings in darkness
Growth of seedlings in darkness
Taller and more spindly
Positive gravitropism
Positive gravitropism
Roots growing downwards
Negative gravitropism
Negative gravitropism
Shoots growing upwards, away from gravity
Where auxins accumulate in phototropism
Where auxins accumulate in phototropism
Shaded side
Effect of auxins on shaded side
Effect of auxins on shaded side
Promote cell elongation and bending towards light
Where auxins accumulate in gravitropism
Where auxins accumulate in gravitropism
Lower side
Effect of auxins in roots
Effect of auxins in roots
Inhibit growth
Effect of auxins in shoots
Effect of auxins in shoots
Promote growth
Control variables in light experiment
Control variables in light experiment
Same temperature and same amount of water
Observation period for seedlings
Observation period for seedlings
Daily for a week
Group 1 light experiment placement
Group 1 light experiment placement
Well-lit area
Group 2 light experiment placement
Group 2 light experiment placement
Dark box or lightproof enclosure
Error source: light in experiment
Error source: light in experiment
Uneven light distribution
Error source: moisture in experiment
Error source: moisture in experiment
Inconsistent moisture levels