Tag: enzymes
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How Did the Cardinal Get His Red Feathers (CER)
Based on a study from Nature that examines the role of enzymes in red coloration. Enzyme pathway converts yellow carotenoids into red ketocarotenoids.
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Catalase Activity in Yeast Using Sodium Alginate
Create yeast spheres using sodium alginate to test the rate of enzyme reactions at different concentrations and temperatures.
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Demonstration: Can Yeast Digest Lactose?
This activity can be performed as student lead inquiry lab or as a class demonstration activity. Students should have a basic understanding of how enzymes work and the relationship between lactose and lactase. If you use Openstax, this is a great lesson to bridge the chapter on enzymes to the next one on respiration and…
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Investigation: Enzymes
This simple investigation can be completed using materials easily obtained from stores. In a series of tests, students observe how the enzyme catalase breaks down hydrogen peroxide into oxygen and water. Catalase is found in living tissues, but a good reaction can be observed when using chicken livers. The bubbling of the peroxide serves as…
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Can Bacteria Be Designed to Create Gasoline?
I’ve heard the term “biofuel” before, and that usually conjures up images of corn fields and ethanol. I recently attended a lecture at Washington University presented by Fuzhong Zhang. The title of the workshop was quite intimidating: “Synthetic Regulatory Systems for Dynamic Metabolic Pathways.” Teachers don’t just spend our summers lazing about at the pool!…