Tag: yeast
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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: Enzyme and Substrate Concentrations
Students who complete the Enzyme Investigation lab can further explore enzymes with this lab on how concentrations of the substrate (hydrogen peroxide) and the enzyme ( catalase) can affect the rate of reaction. In the first experiment, students simply made a judgement about the amount of bubbling to indicate reaction speed, though this is a…