| A | B |
|---|
| Chemical Control | coordinates body processes by transmitting messages from one part of the organism to another |
| Characteristics of Plant Hormones | • Plant hormones are chemicals that affect growth and development |
| Auxins | are one type of plant hormone |
| What do Auxins influence? | division, elongation, and differentiation of plant cells |
| • Unequal distribution of auxins causes what? | unequal growth responses called tropisms |
| What are tropisms? | unequal growth responses |
| • Unequal auxin distribution can be caused by.......? | external stimuli such as light and gravity |
| Tropisms are usually adaptive growth responses that enhance the survival of what? | the plant |
| Phototropism | • Growth of a plant towards light due to unequal distribution of auxins |
| Geotropism | • Growth of a plant due to gravity |
| • Hormones | the interaction and exertion control on metabolic activities such as metamorphosis and reproduction |
