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Plant Hormones
Students identify different plant hormones and explain their function in plant development. In this biology lesson, students investigate how IAA affect root growth. They study the history of auxin discovery.
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Factors Affecting Plant Growth
Students determine the physical and chemical factors that affect plant growth. In this biology lesson, students explain the role of hormones in plants. They investigate how competition with other plants affect their growth.
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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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Hormone-Induced Plant Propagation Lab using Carrot Root Cultures
Students evaluate the importance of hormones in living things. In this biology lesson, students experiment on carrots to differentiate how humans and plants reproduce. They collect data from experiment to answer analysis questions.
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CULTURING PLANTS FROM EMBRYONIC PLANT TISSUE
Students use this laboratory exercise as a growth medium that contains the macronutrient and micronutrient needs of plants. They observe the effects of different hormones on tissue cultures and must use variations of the basic growth...
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What Turns Seeds On?
Students design, implement, and report a scientific research project using the scientific method. They explain the experiment and its findings through poster, essay , or other presentation method.
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Plant Biotechnology: Controlling Tissue Differentiation
Students demonstrate hormonal control of plant tissue differentiation and relate this differentiation to gene expression. They explore the effects of hormones (auxin and cytokinin) on the genes that control tissue differentiation in callus.
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Plant Biotechnology: Controlling Tissue Differentation
Students demonstrate skills of biotechnology stringent aseptic technique and statistical analysis. They describe hormonal control of plant tissue differentiation and relate this to gene expression. Students observe the effects of...
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Culturing Plants from Embryonic Plant Tissue
Student groups use lima beans to represent dicots and corn to represent monocots, soak the seeds, and separate the embryos from the cotyledons. They then place the seeds in Petri dishes in agar and observe for at least one week recording...
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Tropism
Students conduct various experiments on tropism. In this biology lesson, students explain how gravity affects the growth of plant roots. They identify the different types of tropisms.
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Which Way to Grow?
Learners diagram and discuss the effect of gravity on the growth of plant roots. Designed to demonstrate the role that the growth hormone auxin plays in the direction of root growth. They set up the experiment to test their hypothesis...
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Stem Cuttings
Learners select the best non-flowering stems of plants and remove the leaves from the soon to be buried portion of the stem. They fill seedling flats with soil and insert the cuttings, label, and water.
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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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Beef Is Good For You
Students discuss as a class the need for a healthy diet. They bring in a food product and analyze the nutrition label. Using the labels, they complete a worksheet and chart the nutrients found in beef. They use a scale to see how...