Plant Hormones Quiz

Which hormone is often referred to as the 'stress hormone' in plants due to its involvement in responses to various environmental stresses?

• Gibberellin

• Ethylene

• Cytokinin

• Auxin

In which part of the plant are auxins primarily synthesized?

• Leaves

• Roots

• Shoot tips

• Flowers

What role does ethylene play in fruit ripening?

• Inhibits fruit ripening

• Accelerates fruit ripening

• Has no effect on fruit ripening

• Induces seed dormancy

Which hormone is responsible for promoting lateral bud growth and inhibiting apical dominance?

• Ethylene

• Gibberellin

• Cytokinin

• Auxin

Which plant hormone is involved in the regulation of seed dormancy and is often associated with inhibiting various aspects of plant growth?

• Gibberellin

• Cytokinin

• Abscisic Acid

• Auxin

Which plant hormone is responsible for cell elongation and growth, especially in the shoot tips?

• Auxin

• Gibberellin

• Cytokinin

• Ethylene

What is the function of abscisic acid (ABA) in plants during periods of water stress?

• Promotes stomatal opening

• Promotes seed germination

• Inhibits stomatal opening

• Stimulates shoot elongation

What is the primary function of gibberellins in plants?

• Root development

• Flowering

• Leaf senescence

• Abscission

Which hormone plays a crucial role in the regulation of fruit development, particularly in promoting fruit setting and preventing premature fruit drop?

• Cytokinin

• Ethylene

• Abscisic Acid

• Gibberellin

Which plant hormone is involved in promoting seed germination and breaking dormancy?

• Abscisic Acid

• Gibberellin

• Ethylene

• Cytokinin