Plant Hormones
Biology ⇒ Plant Biology
Plant Hormones starts at 9 and continues till grade 12.
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See sample questions for grade 12
A plant is exposed to light from one side only. Which hormone redistributes to the shaded side, causing the plant to bend towards the light?
Describe how abscisic acid and gibberellins have opposite effects on seed dormancy.
Describe the interaction between auxin and cytokinin in tissue culture for shoot and root formation.
Describe the role of auxin in phototropism.
Describe the role of gibberellins in bolting of rosette plants.
Explain how ethylene affects fruit ripening.
Explain the role of cytokinins in tissue culture and micropropagation.
Explain why abscisic acid is important for plant survival during drought conditions.
Name two physiological processes in plants regulated by gibberellins.
Which hormone is commonly used to promote rooting in plant cuttings?
Which hormone is involved in the triple response of seedlings to mechanical stress?
Which hormone is known as the 'stress hormone' in plants?
Which hormone is responsible for apical dominance in plants?
Which hormone is responsible for the induction of parthenocarpy (development of fruit without fertilization)?
Which hormone is used commercially to ripen bananas?
Which plant hormone is most closely associated with the closing of stomata during water stress?
