Curated OER
Plant Growth
Examine the growth regions and tissues in plants. The structures and specialized areas of roots, stems, and shoots are defined and supported with diagrams and pictures. Your class will also learn the details of specific growth...
Curated OER
Auxin: Indole-3-Acetic Acid (AAA), A Hormone with Diverse Effects: Synthesis and Applications
Students synthesize Indole-3-Acetic acid from 3-indolylacetonitrile. In this biochemistry lesson, students determine the effect of different concentrations of IAA on lima beans. They explain how hormones help in plant development.
Curated OER
Auxin: Indole-3-Acetic Acid
Students identify auxins from their structural formulas. They understand the process of refluxing in chemical synthesis. Students perform thin layer chromatography using silica gel plates to differentiate chemical substances.
Curated OER
Science: A-maze-ing Plants
Young scholars discover how light helps plants to grow. By placing a plant inside a box cut into a maze, they observe how the plant finds its way through the maze to the light source.
Ohio State University
Ohio State University: Development From Seed to Plant
A thorough discussion of the environmental cues that can trigger germination and of the changes in structure that result. Charts, graphs, and links are also provided.
Wikimedia
Wikipedia: Gravitropism (Geotropism)
Gravitropism (or geotropism) is how a plant responds to gravity. Roots have a positive reaction to gravity and they grow toward it. Stems have a negative reaction and grow away from gravity. Learn more about what happens inside a plant...
Ohio State University
The Ohio State University: Plant Hormones
Page offers an explanation of plant hormones, including auxin and ethylene.
Ohio State University
Ohio State University: Plant Signals & Sensors
A concise review of how plants sense environmental conditions and respond to stimuli. Good illustrations and a quiz enhance learning along with links to additional information.