A short quiz to test your knowledge on the control systems used by plants.
Gravitropism
Thigmotropism
Statoliths
Geotropism
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Ethylene
Gibberelins
Auxins
Cytokinins
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Dormancy
Germination
Organogenesis
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The plant stops growing
The plant grows upward
The plant germinates
The plant grows outward
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Abscission
Cuticle production
Leaf loss
Auxin opposition
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Activating expansins to loosen H bonds between cellulose fibers
Inhibiting dormancy
Activating enzymes to amplify the phytochrome signal
Initiating chlorophyll production
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Cytochrome
Cryptochrome
Phytochrome
Chlorochrome
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Red, closing of the stomata
Red-yellow, flowering
Violet, ripening
Blue-green, germination
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Auxins
Gibberelins
Abscissic acid
Cytokinins
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Spring and early summer
Late summer and fall
Fall and winter
Winter and early spring
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