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Photosynthesis
Students assess and experiment with the role of plant pigments in photosynthesis. They relate the basic principles of photosynthesis utilizing paper chromatography to evaluate a hypothesis regarding plant pigments as well as the role of...
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Flower Pigments
Pupils experiment with Thin Layer Chromatography to separate pigments found in flower petals.
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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.
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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.
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Does Dye Die? Foreign Chemicals in Our Environment
Students conduct an experiment to observe photolysis in the lab. In this chemistry lesson, students explain the mechanism behind photolysis. They test the impact of a non-toxic marker to plant metabolism.
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Isolation of Synthetic Chemicals from Plant Leaves
Young scholars isolate and identify a dye, which represents a synthetic pesticide, from plants.
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Molecular Evolution in Plants
Learners examine chlorophylls. They explore the absorbing pigments in a variety of plants. Through activities, students determine spectrophotometrically. They compare plant proteins from the family Brassicace to assess the level of...
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Does Dye Die...? : Foreign Chemicals In Our Environment
Young scholars work as scientists to simulate testing on soil, plants, and water for foreign chemicals through this series of experiments.
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Molecular Approaches to Evolution
Students are introduced to working with molecular data. The first activity does both simulated and original data are used to compare amino acid, protein or DNA differences to construct phylogenetic trees or cladograms. These activities...
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Molecular Approaches to Evolution
High schoolers examine the molecular studies of organisms that have led to a new era in their understanding of speciation and evolutionary relationships. Students study the allelic frequency of genes controlling specific molecules and...
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Relationships and Biodiversity
Young scholars examine diversity on the planet and the differences within a species. In this investigative lesson students complete a lab that allows young scholars to better understand the relatedness between plants.
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Relationships and Biodiversity Lab Practice
In this biodiversity worksheet, students determine the relationship and complete the evolutionary tree for the plants listed. Students review genetic code and DNA sequencing. This worksheet has 1 graphic organizer, 8 multiple choice, and...