Plant Hormones in Biology

What is the primary plant hormone responsible for cell elongation and growth?

• Abscisic acid

• Auxin

• Cytokinin

• Gibberellin

Which plant hormone is associated with the process of phototropism?

• Cytokinin

• Abscisic acid

• Gibberellin

• Auxin

Name the plant hormone that promotes fruit ripening.

• Ethylene

• Gibberellin

• Cytokinin

• Auxin

Which plant hormone is known for its role in seed germination?

• Abscisic acid

• Gibberellins

• Cytokinins

• Auxins

What is the plant hormone responsible for leaf abscission?

• cytokinin

• gibberellin

• ethylene

• auxin

Which plant hormone is involved in the regulation of stomatal closure?

• gibberellin

• cytokinin

• auxin

• abscisic acid

Name the plant hormone that inhibits stem elongation and promotes lateral root growth.

• gibberellin

• cytokinin

• auxin

• ethylene

What is the primary plant hormone responsible for gravitropism?

• Cytokinin

• Auxin

• Gibberellin

• Abscisic acid

Which plant hormone is associated with the process of apical dominance?

• Auxin

• Cytokinin

• Gibberellin

• Abscisic acid

Name the plant hormone that regulates the opening and closing of stomata.

• Jasmonic acid

• Cytokinins

• Abscisic acid (ABA)

• Gibberellins