AP Biology (Mader), 11th Edition

Chapter 26: Flowering Plants: Control of Growth Responses

Learning Outcomes

26.1 Plant Hormones

1. Explain the role of hormones when plant cells utilize signal transduction to respond to stimuli.
2. Compare and contrast the effects of auxins, gibberellins, cytokinins, abscisic acid, and ethylene on plant growth and development.

26.2 Plant Responses

1. Identify how gravitropism, phototropism, thigmotropism, turgor movements, and sleep movements are responses to particular stimuli.
2. Compare flowering in short-day/long-night plants and in long-day/short-night plants as it relates to photoperiodism.
3. Describe ways in which plants respond to their biotic environment, including physical barriers, chemical toxins, systemic mechanisms, and relationships with animals.
4. Identify the chemical defenses of plants that are used as medicines for people.