Plant Hormones

Plant Hormones

Multiple Choice

You can buy products that help plants grow. Which hormone would be present in a product like this and why?

• ABA because it keeps seeds dormant

• Auxin because it stimulates roots to grow

• Ethylene because it stimulates abscission of leaves

• Gibberellins because they stimulate pollen tube growth

Multiple Choice

ABA, or Abscisic acid, would likely cause which of the follow to occur?

• Closing of stomata

• Cell elongation

• Tropisms

• Fruit ripening

Multiple Choice

Which of the following hormones is/are involved in the germination of seeds?

• Cytokinin

• Ethene

• Gibberellin

• All of these

Multiple Choice

Bananas are ripened by which hormone?

• Cytokinin

• ABA

• Ethene

• Gibberellin

Multiple Choice

Which hormone is most likely involved in Mitosis?

• Auxin

• Cytokinin

• ABA

• Ethene

Multiple Choice

Under certain conditions, seeds need to prevent growth of a new plant, for example, when there is a drought and a new plant would not survive. Which hormone is involved in making seeds dormant?

• Gibberellin

• Auxin

• Cytokinin

• ABA