Tag: catalase
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Lab: How Do Enzymes Work
Explore how enzymes work with this engaging lab. I redesigned this lab with freshman students in mind. The directions are simple. Students drop hydrogen peroxide onto raw liver, and observe the bubbling. The bubbles are oxygen as it is being released in the reaction. The lab handout includes a background section that explains how enzymes…
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Enzymes and Substrates – Coloring
A simple worksheet showing how enzymes bind to substrates to create products. Students color a graphic and answer questions.
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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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StoryLab: How Enzymes Work
This story lab aligns to an investigations students do with enzymes where they put hydrogen peroxide on liver and observe bubbles produced from the reaction with catalase. This investigation has several versions for different levels of biology (regular track, intro, and AP) though the story lab was intended for the intro track students who do…
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Investigation: How Do Enzymes Work?
This lab is fairly basic, but when given with guided instruction how enzymes catalyze reactions, students can have a hands-on experience into how proteins are related to function.
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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…
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Investigation: Enzymes Activity with Catalase
Have you ever noticed that when you pour hydrogen peroxide on a wound, it bubbles? The reason is that bacteria and your own tissue contains an enzyme that breaks down the peroxide. Peroxide splits into a molecule of water and a molecule of oxygen, which causes the bubbles. In a series of tests, students observe…