Plant hormones can have different effects at different concentrations. This explains how
A) some plants are long-day plants and others are short-day plants.
B) signal transduction pathways in plants are different from those in animals.
C) plant genes recognize pathogen genes.
D) auxin can stimulate cell elongation in apical meristems, yet will inhibit the growth of axillary buds.
E) gibberellin concentration can both induce and break dormancy.

Question

Quizplus · Accepted Answer

Auxin can stimulate cell elongation in apical meristems because it is produced in high concentrations in those regions. However, auxin will inhibit growth in axillary buds because it is produced in lower concentrations in those regions. This demonstrates how plant hormones can have different effects at different concentrations.

Plant Hormones Can Have Different Effects at Different Concentrations