13-9a Plant Hormones

On which side of the plant will you find more auxin?

• on the side near the sun

• on the side away from the sun

How do plant cells respond to the auxin signal?

• growth proteins are activated so the cell elongates

• growth proteins are inhibited so the cell shrinks

What does cytokinin do in plants?

• it promotes cell elongation

• it promotes cell division

Which plant hormone causes fruit to ripen?

• giberellins

• abscisic acid

• ethylene

Which plant hormone can cause plants to go dormant?

• abscisic acid

• ethylene

• gibberellins