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AQA Biology GCSE Uses of Plant Hormones Flashcards | StudBud
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AQA Biology GCSE Uses of Plant Hormones
AQA Biology GCSE Uses of Plant Hormones
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Answers
1
Which plant hormone is used to control when fruits ripen?
auxin
gibberellin
cytokinin
ethene
2
Which plant hormone is used in rooting powder to promote the growth of roots in cuttings?
cytokinin
auxin
gibberellin
ethene
3
Which plant hormone is used to promote flowering in cut flowers and pot plants?
gibberellin
ethene
auxin
cytokinin
4
Which plant hormone is used to make seedless grapes?
cytokinin
gibberellin
ethene
auxin
5
What is the advantage of making plant clones using tissue culture?
All plants are susceptible to the same disease
It's cheaper and more reliable than sowing seeds
Quality of the crop can be guaranteed as no genetic variation
It provides genetic diversity
6
Which industry uses gibberellins to force dormant seeds to germinate?
plastics
aviation
brewing
pharmaceutical
7
Which plant hormone is used to make many small plant clones in tissue culture?
cytokinin
auxin
ethene
gibberellin
8
Which plant hormone is used in selective weedkiller?
cytokinin
auxin
gibberellin
ethene
9
Which plant hormone is used to make dormant seeds germinate?
gibberellin
ethene
auxin
cytokinin
10
How do selective weedkillers work?
They poison the weeds
They make weeds grow too much so their cells burst
They cause seed dormancy
They stunt the growth of weeds
