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.

Question

Quizplus · Accepted Answer

This statement highlights the fact that plant hormones, specifically auxin, can have different effects at different concentrations. At high concentrations, auxin stimulates cell elongation in apical meristems, but at lower concentrations it inhibits the growth of axillary buds. This demonstrates the importance of dosage and concentration in the effects of plant hormones.

Plant Hormones Can Have Different Effects at Different Concentrations